Clean up of Windows telnet source

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@5569 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 431 insertions, 410 deletions

diff --git a/src/windows/wintel/edit.c b/src/windows/wintel/edit.c
index 16ac28c248..02de7bea1d 100644
--- a/src/windows/wintel/edit.c
+++ b/src/windows/wintel/edit.c
@@ -1,419 +1,440 @@
+/* edit.c */
+
 #include <windows.h>
 #include <commdlg.h>
 #include <ctype.h>
+#include <assert.h>
 #include "screen.h"
 
 char *cInvertedArray;
-int bMouseDown=FALSE;
-int iLocStart,iLocEnd,bSelection;
-
-void Edit_LbuttonDown(HWND hWnd,LPARAM lParam) {
-    SCREEN *fpScr;
-    HGLOBAL hgScr;
-    HMENU hMenu;
-    int iTmp,iXlocStart,iYlocStart;
-    HDC hDC;
-    
-    hgScr=(HGLOBAL)GetWindowWord(hWnd,SCREEN_HANDLE);
-    if (hgScr == NULL) OutputDebugString("Hosed #1.\r\n");
-    fpScr=(SCREEN *)GlobalLock(hgScr);
-    if (fpScr == NULL) OutputDebugString("Hosed #2.\r\n");
-    
-    hDC=GetDC(hWnd);
-    for (iTmp=0; iTmp < fpScr->width*fpScr->height; iTmp++) {        
-        if (cInvertedArray[iTmp]) {
-            PatBlt(hDC,(iTmp%fpScr->width)*fpScr->cxChar,(int)(iTmp/fpScr->width)*fpScr->cyChar,
-                fpScr->cxChar,fpScr->cyChar,DSTINVERT);                
-            cInvertedArray[iTmp]=0;                    
-        }    
-    }
-    bSelection=FALSE;
-    hMenu=GetMenu(hWnd);
-    EnableMenuItem(hMenu,IDM_COPY,MF_GRAYED);
-    ReleaseDC(hWnd,hDC);
-    iXlocStart=(int)LOWORD(lParam)/fpScr->cxChar;
-	if (iXlocStart >= fpScr->width)
-		iXlocStart = fpScr->width - 1;
-    iYlocStart=(int)HIWORD(lParam)/fpScr->cyChar;
-	if (iYlocStart >= fpScr->height)
-		iYlocStart = fpScr->height - 1;
-    iLocStart=iXlocStart+(iYlocStart*fpScr->width);
-    bMouseDown=TRUE;
-    GlobalUnlock(hgScr);
-}
-
-void Edit_LbuttonUp(HWND hWnd, LPARAM lParam) {
-    SCREEN *fpScr;
-    HGLOBAL hgScr;
-    int iTmp,iTmp2;
-    HMENU hMenu;
-    
-    bMouseDown=FALSE;
-    if (bSelection) return;
-    bSelection=TRUE;
-    hgScr=(HGLOBAL)GetWindowWord(hWnd,SCREEN_HANDLE);
-    if (hgScr == NULL) OutputDebugString("Hosed #1.\r\n");
-    fpScr=(SCREEN *)GlobalLock(hgScr);
-    if (fpScr == NULL) OutputDebugString("Hosed #2.\r\n");        
-    iTmp=(int)LOWORD(lParam)/fpScr->cxChar;
-	if (iTmp >= fpScr->width)
-		iTmp = fpScr->width - 1;
-    iTmp2=(int)HIWORD(lParam)/fpScr->cyChar;
-	if (iTmp2 >= fpScr->height)
-		iTmp2 = fpScr->height - 1;
-    GlobalUnlock(hgScr);
-    iLocEnd=iTmp+(iTmp2*fpScr->width);
-    if (iLocEnd==iLocStart) {
-        bSelection=FALSE;
-    } else {
-        hMenu=GetMenu(hWnd);
-        EnableMenuItem(hMenu,IDM_COPY,MF_ENABLED);
-    }    
-}    
-    
+int bMouseDown = FALSE;
+int bSelection;
+
+static int iLocStart;
+static int iLocEnd;
+
+void Edit_LbuttonDown(
+	HWND hWnd,
+	LPARAM lParam)
+{
+	SCREEN *pScr;
+	HMENU hMenu;
+	int iTmp;
+	int iXlocStart;
+	int iYlocStart;
+	HDC hDC;
+	
+	pScr = (SCREEN *) GetWindowLong(hWnd, SCREEN_HANDLE);
+	assert(pScr != NULL);
+	
+	hDC = GetDC(hWnd);
+	for (iTmp = 0; iTmp < pScr->width * pScr->height; iTmp++) {        
+		if (cInvertedArray[iTmp]) {
+			PatBlt(hDC, iTmp % pScr->width * pScr->cxChar,
+				(int) (iTmp / pScr->width) * pScr->cyChar,
+				pScr->cxChar, pScr->cyChar, DSTINVERT);                
+			cInvertedArray[iTmp] = 0;
+			}
+	}
+	bSelection = FALSE;
+	hMenu = GetMenu(hWnd);
+	EnableMenuItem(hMenu, IDM_COPY, MF_GRAYED);
+	ReleaseDC(hWnd, hDC);
+	iXlocStart = (int) LOWORD(lParam) / pScr->cxChar;
+	if (iXlocStart >= pScr->width)
+		iXlocStart = pScr->width - 1;
+	iYlocStart = (int) HIWORD(lParam) / pScr->cyChar;
+	if (iYlocStart >= pScr->height)
+		iYlocStart = pScr->height - 1;
+	iLocStart = iXlocStart + iYlocStart * pScr->width;
+	bMouseDown = TRUE;
+
+} /* Edit_LbuttonDown */
+
+
+void Edit_LbuttonUp(
+	HWND hWnd,
+	LPARAM lParam)
+{
+	SCREEN *pScr;
+	int iTmp;
+	int iTmp2;
+	HMENU hMenu;
+	
+	bMouseDown = FALSE;
+	if (bSelection)
+		return;
+	bSelection = TRUE;
+
+	pScr = (SCREEN *) GetWindowLong(hWnd, SCREEN_HANDLE);
+	assert(pScr != NULL);
+
+	iTmp = (int) LOWORD(lParam) / pScr->cxChar;
+	if (iTmp >= pScr->width)
+		iTmp = pScr->width - 1;
+	iTmp2 = (int) HIWORD(lParam) / pScr->cyChar;
+	if (iTmp2 >= pScr->height)
+		iTmp2 = pScr->height - 1;
+	iLocEnd = iTmp + iTmp2 * pScr->width;
+	if (iLocEnd == iLocStart) {
+		bSelection = FALSE;
+	}
+	else {
+		hMenu = GetMenu(hWnd);
+		EnableMenuItem(hMenu, IDM_COPY, MF_ENABLED);
+	}    
+
+} /* Edit_LbuttonUp */
+
+
 void Edit_MouseMove(HWND hWnd, LPARAM lParam){
-    SCREEN *fpScr;
-    HGLOBAL hgScr;
-    int iTmp,iTmp2,iXlocCurr,iYlocCurr,iLocCurr,iX,iX2,iY,iY2;
-    HSCREENLINE hgScrLine;
-    SCREENLINE *fpScrLine;
-    HDC hDC;
-    
-    hgScr=(HGLOBAL)GetWindowWord(hWnd,SCREEN_HANDLE);
-    if (hgScr == NULL) OutputDebugString("Hosed #1.\r\n");
-    fpScr=(SCREEN *)GlobalLock(hgScr);
-    if (fpScr == NULL) OutputDebugString("Hosed #2.\r\n");
-    hDC = GetDC(hWnd);
-    iXlocCurr=(int)LOWORD(lParam)/fpScr->cxChar;
-	if (iXlocCurr >= fpScr->width)
-		iXlocCurr = fpScr->width - 1;
-    iYlocCurr=(int)HIWORD(lParam)/fpScr->cyChar;
-	if (iYlocCurr >= fpScr->height)
-		iYlocCurr = fpScr->height - 1;
-    iLocCurr=iXlocCurr+(iYlocCurr*fpScr->width);
-    if (iLocCurr > iLocStart) {    
-        for (iTmp=0; iTmp < iLocStart; iTmp++) {        
-            if (cInvertedArray[iTmp]) {
-                PatBlt(hDC,(iTmp%fpScr->width)*fpScr->cxChar,(int)(iTmp/fpScr->width)*fpScr->cyChar,
-                    fpScr->cxChar,fpScr->cyChar,DSTINVERT);                
-                cInvertedArray[iTmp]=0;                    
-            }    
-        }
-        iX=(iLocStart%fpScr->width);
-        iY=(int)(iLocStart/fpScr->width);
-        iX2=(iLocCurr%fpScr->width);
-        iY2=(int)(iLocCurr/fpScr->width);
-        if (iY==iY2) {
-            hgScrLine=GetScreenLineFromY(fpScr,iY);
-            fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-            for (iTmp2= iX; iTmp2 < iX2; iTmp2++) {
-                if ((!cInvertedArray[iTmp2+(fpScr->width*iY)])&& fpScrLine->text[iTmp2]) {
-                    PatBlt(hDC,(iTmp2)*fpScr->cxChar,iY*fpScr->cyChar,
-                        fpScr->cxChar,fpScr->cyChar,DSTINVERT);
-                    cInvertedArray[iTmp2+(fpScr->width*iY)]=fpScrLine->text[iTmp2];
-                }    
-            }    
-            LINE_MEM_UNLOCK(hgScrLine);
-        }            
-        else {
-            hgScrLine=GetScreenLineFromY(fpScr,iY);
-            fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-            for (iTmp2= iX; iTmp2 < fpScr->width; iTmp2++) {
-                if ((!cInvertedArray[iTmp2+(fpScr->width*iY)])&& fpScrLine->text[iTmp2]) {
-                    PatBlt(hDC,(iTmp2)*fpScr->cxChar,iY*fpScr->cyChar,
-                        fpScr->cxChar,fpScr->cyChar,DSTINVERT);
-                    cInvertedArray[iTmp2+(fpScr->width*iY)]=fpScrLine->text[iTmp2];
-                }    
-            }                
-            for (iTmp=iY+1; iTmp < iY2; iTmp++) {
-                hgScrLine=GetScreenLineFromY(fpScr,iTmp);
-                fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-                for (iTmp2= 0; iTmp2 < fpScr->width; iTmp2++) {
-                    if ((!cInvertedArray[iTmp2+(fpScr->width*iTmp)])&& fpScrLine->text[iTmp2]) {
-                        PatBlt(hDC,(iTmp2)*fpScr->cxChar,iTmp*fpScr->cyChar,
-                            fpScr->cxChar,fpScr->cyChar,DSTINVERT);
-                        cInvertedArray[iTmp2+(fpScr->width*iTmp)]=fpScrLine->text[iTmp2];
-                    }    
-                }    
-                LINE_MEM_UNLOCK(hgScrLine);
-            }
-            if (!(iY2==iY)) {
-                hgScrLine=GetScreenLineFromY(fpScr,iY2);
-                fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-                for (iTmp2= 0; iTmp2 < iX2; iTmp2++) {
-                    if ((!cInvertedArray[iTmp2+(fpScr->width*iY2)])&& fpScrLine->text[iTmp2]) {
-                        PatBlt(hDC,(iTmp2)*fpScr->cxChar,iY2*fpScr->cyChar,
-                            fpScr->cxChar,fpScr->cyChar,DSTINVERT);
-                        cInvertedArray[iTmp2+(fpScr->width*iY2)]=fpScrLine->text[iTmp2];
-                    }    
-                }    
-                LINE_MEM_UNLOCK(hgScrLine);                
-            }                
-
-        }    
-        for (iTmp=iLocCurr; iTmp < fpScr->width*fpScr->height; iTmp++) {        
-            if (cInvertedArray[iTmp]) {
-                PatBlt(hDC,(iTmp%fpScr->width)*fpScr->cxChar,(int)(iTmp/fpScr->width)*fpScr->cyChar,
-                    fpScr->cxChar,fpScr->cyChar,DSTINVERT);                
-                cInvertedArray[iTmp]=0;                    
-            }    
-        }
-    } else { /* going backwards */
-        for (iTmp=0; iTmp < iLocCurr; iTmp++) {        
-            if (cInvertedArray[iTmp]) {
-                PatBlt(hDC,(iTmp%fpScr->width)*fpScr->cxChar,(int)(iTmp/fpScr->width)*fpScr->cyChar,
-                    fpScr->cxChar,fpScr->cyChar,DSTINVERT);                
-                cInvertedArray[iTmp]=0;                    
-            }    
-        }
-        iX=(iLocCurr%fpScr->width);
-        iY=(int)(iLocCurr/fpScr->width);
-        iX2=(iLocStart%fpScr->width);
-        iY2=(int)(iLocStart/fpScr->width);
-        if (iY==iY2) {
-            hgScrLine=GetScreenLineFromY(fpScr,iY);
-            fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-            for (iTmp2= iX; iTmp2 < iX2; iTmp2++) {
-                if ((!cInvertedArray[iTmp2+(fpScr->width*iY)])&& fpScrLine->text[iTmp2]) {
-                    PatBlt(hDC,(iTmp2)*fpScr->cxChar,iY*fpScr->cyChar,
-                        fpScr->cxChar,fpScr->cyChar,DSTINVERT);
-                    cInvertedArray[iTmp2+(fpScr->width*iY)]=fpScrLine->text[iTmp2];
-                }    
-            }    
-            LINE_MEM_UNLOCK(hgScrLine);
-        }            
-        else {
-            hgScrLine=GetScreenLineFromY(fpScr,iY);
-            fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-            for (iTmp2= iX; iTmp2 < fpScr->width; iTmp2++) {
-                if ((!cInvertedArray[iTmp2+(fpScr->width*iY)])&& fpScrLine->text[iTmp2]) {
-                    PatBlt(hDC,(iTmp2)*fpScr->cxChar,iY*fpScr->cyChar,
-                        fpScr->cxChar,fpScr->cyChar,DSTINVERT);
-                    cInvertedArray[iTmp2+(fpScr->width*iY)]=fpScrLine->text[iTmp2];
-                }    
-            }                
-            for (iTmp=iY+1; iTmp < iY2; iTmp++) {
-                hgScrLine=GetScreenLineFromY(fpScr,iTmp);
-                fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-                for (iTmp2= 0; iTmp2 < fpScr->width; iTmp2++) {
-                    if ((!cInvertedArray[iTmp2+(fpScr->width*iTmp)])&& fpScrLine->text[iTmp2]) {
-                        PatBlt(hDC,(iTmp2)*fpScr->cxChar,iTmp*fpScr->cyChar,
-                            fpScr->cxChar,fpScr->cyChar,DSTINVERT);
-                        cInvertedArray[iTmp2+(fpScr->width*iTmp)]=fpScrLine->text[iTmp2];
-                    }    
-                }    
-                LINE_MEM_UNLOCK(hgScrLine);
-            }
-            if (!(iY2==iY)) {
-                hgScrLine=GetScreenLineFromY(fpScr,iY2);
-                fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-                for (iTmp2= 0; iTmp2 < iX2; iTmp2++) {
-                    if ((!cInvertedArray[iTmp2+(fpScr->width*iY2)])&& fpScrLine->text[iTmp2]) {
-                        PatBlt(hDC,(iTmp2)*fpScr->cxChar,iY2*fpScr->cyChar,
-                            fpScr->cxChar,fpScr->cyChar,DSTINVERT);
-                        cInvertedArray[iTmp2+(fpScr->width*iY2)]=fpScrLine->text[iTmp2];
-                    }    
-                }    
-                LINE_MEM_UNLOCK(hgScrLine);                
-            }                
-
-        }    
-        for (iTmp=iLocStart; iTmp < fpScr->width*fpScr->height; iTmp++) {        
-            if (cInvertedArray[iTmp]) {
-                PatBlt(hDC,(iTmp%fpScr->width)*fpScr->cxChar,(int)(iTmp/fpScr->width)*fpScr->cyChar,
-                    fpScr->cxChar,fpScr->cyChar,DSTINVERT);                
-                cInvertedArray[iTmp]=0;                    
-            }    
-        }
-        
-    }            
-    ReleaseDC(hWnd,hDC);
-    GlobalUnlock(hgScr);
-}
-
-void Edit_ClearSelection(SCREEN *fpScr) {
-    int iTmp;
-    HDC hDC;
-    HMENU hMenu;
-
-    hDC=GetDC(fpScr->hWnd);
-    for (iTmp=0; iTmp < fpScr->width*fpScr->height; iTmp++) {        
-        if (cInvertedArray[iTmp]) {
-            PatBlt(hDC,(iTmp%fpScr->width)*fpScr->cxChar,(int)(iTmp/fpScr->width)*fpScr->cyChar,
-                fpScr->cxChar,fpScr->cyChar,DSTINVERT);                
-            cInvertedArray[iTmp]=0;                    
-        }    
-    }
-    bSelection=FALSE;
-    hMenu=GetMenu(fpScr->hWnd);
-    EnableMenuItem(hMenu,IDM_COPY,MF_GRAYED);    
-    ReleaseDC(fpScr->hWnd,hDC);
-}    
-
-void Edit_Copy(HWND hWnd) {
-    int iTmp,iIdx;
-    HGLOBAL hCutBuffer;
-    LPSTR lpCutBuffer;
-    SCREEN *fpScr;
-    HGLOBAL hgScr;
-    
-    hgScr=(HGLOBAL)GetWindowWord(hWnd,SCREEN_HANDLE);
-    if (hgScr == NULL) OutputDebugString("Hosed #1.\r\n");
-    fpScr=(SCREEN *)GlobalLock(hgScr);
-
-    hCutBuffer= GlobalAlloc(GHND,(DWORD)(fpScr->width*fpScr->height+1));
-    lpCutBuffer= GlobalLock(hCutBuffer);
-
-    if (iLocStart > iLocEnd) { /* swap variables */
-        iTmp=iLocStart;
-        iLocStart=iLocEnd;
-        iLocEnd=iLocStart;
-    }        
-    iTmp=iLocStart;
-    iIdx=0;
-    while (iTmp < iLocEnd) {
-        if (!cInvertedArray[iTmp]) {
-            lpCutBuffer[iIdx++]='\r';
-            lpCutBuffer[iIdx++]='\n';
-            iTmp= (((int)(iTmp/fpScr->width))+1)*fpScr->width;            
-            continue;
-        }
-        lpCutBuffer[iIdx++]=cInvertedArray[iTmp++];
-    }
-    lpCutBuffer[iIdx]=0;
-    GlobalUnlock(hCutBuffer);
-    OpenClipboard(hWnd);
-    EmptyClipboard();
-    SetClipboardData(CF_TEXT,hCutBuffer);
-    CloseClipboard();
-}
-
-void Edit_Paste(HWND hWnd) {
-    HGLOBAL hClipMemory;
-    static HGLOBAL hMyClipBuffer;
-    LPSTR lpClipMemory,lpMyClipBuffer;
-    HGLOBAL hgScr;
-	SCREEN *fpScr;                              
-    
-    if (hMyClipBuffer) GlobalFree(hMyClipBuffer);
-    OpenClipboard(hWnd);
-    hClipMemory = GetClipboardData(CF_TEXT);
-    hMyClipBuffer = GlobalAlloc(GHND,GlobalSize(hClipMemory));
-    lpMyClipBuffer= GlobalLock(hMyClipBuffer);
-    lpClipMemory= GlobalLock(hClipMemory);
-    
-    hgScr=(HGLOBAL)GetWindowWord(hWnd,SCREEN_HANDLE);
-    if (hgScr == NULL) OutputDebugString("Hosed #1.\r\n");
-	fpScr=(SCREEN *)GlobalLock(hgScr);
-    if (fpScr == NULL) OutputDebugString("Hosed #2.\r\n");
-
-    lstrcpy(lpMyClipBuffer,lpClipMemory);
+	SCREEN *pScr;
+	int iTmp;
+	int iTmp2;
+	int iXlocCurr;
+	int iYlocCurr;
+	int iLocCurr;
+	int iX;
+	int iX2;
+	int iY;
+	int iY2;
+	SCREENLINE *pScrLine;
+	HDC hDC;
+
+	pScr = (SCREEN *) GetWindowLong(hWnd, SCREEN_HANDLE);
+	assert(pScr != NULL);
+
+	hDC = GetDC(hWnd);
+	iXlocCurr = (int) LOWORD(lParam) / pScr->cxChar;
+	if (iXlocCurr >= pScr->width)
+		iXlocCurr = pScr->width - 1;
+	iYlocCurr = (int) HIWORD(lParam) / pScr->cyChar;
+	if (iYlocCurr >= pScr->height)
+		iYlocCurr = pScr->height - 1;
+	iLocCurr = iXlocCurr + (iYlocCurr * pScr->width);
+	if (iLocCurr > iLocStart) {
+		for (iTmp=0; iTmp < iLocStart; iTmp++) {        
+			if (cInvertedArray[iTmp]) {
+				PatBlt(hDC, (iTmp % pScr->width) * pScr->cxChar,
+					(int) (iTmp / pScr->width) * pScr->cyChar,
+					pScr->cxChar, pScr->cyChar, DSTINVERT);
+				cInvertedArray[iTmp] = 0;
+			}
+		}
+		iX = iLocStart % pScr->width;
+		iY = (int) (iLocStart / pScr->width);
+		iX2 = iLocCurr % pScr->width;
+		iY2 = (int) (iLocCurr / pScr->width);
+		if (iY == iY2) {
+			pScrLine = GetScreenLineFromY(pScr, iY);
+			for (iTmp2 = iX; iTmp2 < iX2; iTmp2++) {
+				if ((!cInvertedArray[iTmp2 + (pScr->width * iY)]) && pScrLine->text[iTmp2]) {
+					PatBlt(hDC, iTmp2 * pScr->cxChar, iY * pScr->cyChar,
+						pScr->cxChar, pScr->cyChar, DSTINVERT);
+					cInvertedArray[iTmp2 + (pScr->width * iY)] = pScrLine->text[iTmp2];
+				}
+			}
+		}            
+		else {
+			pScrLine = GetScreenLineFromY(pScr, iY);
+
+			for (iTmp2 = iX; iTmp2 < pScr->width; iTmp2++) {
+				if ((!cInvertedArray[iTmp2 + (pScr->width * iY)]) && pScrLine->text[iTmp2]) {
+					PatBlt(hDC, iTmp2 * pScr->cxChar, iY * pScr->cyChar,
+						pScr->cxChar, pScr->cyChar, DSTINVERT);
+					cInvertedArray[iTmp2 + (pScr->width * iY)] = pScrLine->text[iTmp2];
+				}
+			}
+
+			for (iTmp = iY + 1; iTmp < iY2; iTmp++) {
+				pScrLine = GetScreenLineFromY(pScr, iTmp);
+				for (iTmp2 = 0; iTmp2 < pScr->width; iTmp2++) {
+					if ((!cInvertedArray[iTmp2 + (pScr->width * iTmp)]) && pScrLine->text[iTmp2]) {
+						PatBlt(hDC, iTmp2 * pScr->cxChar, iTmp * pScr->cyChar,
+							pScr->cxChar, pScr->cyChar, DSTINVERT);
+						cInvertedArray[iTmp2 + (pScr->width * iTmp)] = pScrLine->text[iTmp2];
+					}
+				}
+			}
+
+			if (iY2 != iY) {
+				pScrLine = GetScreenLineFromY(pScr, iY2);
+				for (iTmp2 = 0; iTmp2 < iX2; iTmp2++) {
+					if ((!cInvertedArray[iTmp2 + (pScr->width * iY2)]) && pScrLine->text[iTmp2]) {
+						PatBlt(hDC, iTmp2 * pScr->cxChar, iY2 * pScr->cyChar,
+							pScr->cxChar, pScr->cyChar, DSTINVERT);
+						cInvertedArray[iTmp2 + (pScr->width * iY2)] = pScrLine->text[iTmp2];
+					}    
+				}    
+			}                
+		}
+
+		for (iTmp = iLocCurr; iTmp < pScr->width * pScr->height; iTmp++) {        
+			if (cInvertedArray[iTmp]) {
+				PatBlt(hDC, (iTmp % pScr->width) * pScr->cxChar, (int) (iTmp / pScr->width) * pScr->cyChar,
+					pScr->cxChar, pScr->cyChar, DSTINVERT);                
+				cInvertedArray[iTmp] = 0;
+			}
+		}
+	}
+	else { /* going backwards */
+		for (iTmp = 0; iTmp < iLocCurr; iTmp++) {        
+			if (cInvertedArray[iTmp]) {
+				PatBlt(hDC, (iTmp % pScr->width) * pScr->cxChar, (int) (iTmp / pScr->width) * pScr->cyChar,
+					pScr->cxChar, pScr->cyChar, DSTINVERT);                
+				cInvertedArray[iTmp] = 0;
+			}
+		}
+		iX = iLocCurr % pScr->width;
+		iY = (int) (iLocCurr / pScr->width);
+		iX2 = (iLocStart % pScr->width);
+		iY2 = (int) (iLocStart / pScr->width);
+		if (iY == iY2) {
+			pScrLine = GetScreenLineFromY(pScr, iY);
+			for (iTmp2= iX; iTmp2 < iX2; iTmp2++) {
+				if ((!cInvertedArray[iTmp2 + (pScr->width * iY)]) && pScrLine->text[iTmp2]) {
+					PatBlt(hDC, iTmp2 * pScr->cxChar, iY * pScr->cyChar,
+						pScr->cxChar, pScr->cyChar, DSTINVERT);
+					cInvertedArray[iTmp2 + (pScr->width * iY)] = pScrLine->text[iTmp2];
+				}
+			}
+		}            
+		else {
+			pScrLine = GetScreenLineFromY(pScr, iY);
+			for (iTmp2 = iX; iTmp2 < pScr->width; iTmp2++) {
+				if ((!cInvertedArray[iTmp2 + (pScr->width * iY)]) && pScrLine->text[iTmp2]) {
+					PatBlt(hDC, iTmp2 * pScr->cxChar, iY * pScr->cyChar,
+						pScr->cxChar, pScr->cyChar, DSTINVERT);
+					cInvertedArray[iTmp2 + (pScr->width * iY)] = pScrLine->text[iTmp2];
+				}    
+			}                
+			for (iTmp = iY + 1; iTmp < iY2; iTmp++) {
+				pScrLine = GetScreenLineFromY(pScr, iTmp);
+				for (iTmp2 = 0; iTmp2 < pScr->width; iTmp2++) {
+					if ((!cInvertedArray[iTmp2 + (pScr->width * iTmp)]) && pScrLine->text[iTmp2]) {
+						PatBlt(hDC, iTmp2 * pScr->cxChar, iTmp * pScr->cyChar,
+							pScr->cxChar, pScr->cyChar, DSTINVERT);
+						cInvertedArray[iTmp2 + (pScr->width * iTmp)] = pScrLine->text[iTmp2];
+					}
+				}
+			}
+			if (iY2 != iY) {
+				pScrLine = GetScreenLineFromY(pScr, iY2);
+				for (iTmp2 = 0; iTmp2 < iX2; iTmp2++) {
+					if ((!cInvertedArray[iTmp2 + (pScr->width * iY2)]) && pScrLine->text[iTmp2]) {
+						PatBlt(hDC, iTmp2 * pScr->cxChar, iY2 * pScr->cyChar,
+							pScr->cxChar, pScr->cyChar, DSTINVERT);
+						cInvertedArray[iTmp2 + (pScr->width * iY2)] = pScrLine->text[iTmp2];
+					}    
+				}    
+			}                
+		}    
+		for (iTmp = iLocStart; iTmp < pScr->width * pScr->height; iTmp++) {        
+			if (cInvertedArray[iTmp]) {
+				PatBlt(hDC, (iTmp % pScr->width) * pScr->cxChar, (int) (iTmp / pScr->width) * pScr->cyChar,
+					pScr->cxChar, pScr->cyChar, DSTINVERT);
+				cInvertedArray[iTmp] = 0;
+			}    
+		}
+	}            
+	ReleaseDC(hWnd, hDC);
+} /* Edit_MouseMove */
+
+
+void Edit_ClearSelection(
+	SCREEN *pScr)
+{
+	int iTmp;
+	HDC hDC;
+	HMENU hMenu;
+
+	hDC = GetDC(pScr->hWnd);
+	for (iTmp = 0; iTmp < pScr->width * pScr->height; iTmp++) {
+		if (cInvertedArray[iTmp]) {
+			PatBlt(hDC, (iTmp % pScr->width) * pScr->cxChar,
+				(int) (iTmp / pScr->width) * pScr->cyChar,
+				pScr->cxChar, pScr->cyChar, DSTINVERT);
+			cInvertedArray[iTmp] = 0;
+		}
+	}
+	bSelection = FALSE;
+	hMenu=GetMenu(pScr->hWnd);
+	EnableMenuItem(hMenu, IDM_COPY, MF_GRAYED);    
+	ReleaseDC(pScr->hWnd, hDC);
+} /* Edit_ClearSelection */
+
+
+void Edit_Copy(
+	HWND hWnd)
+{
+	int iTmp,iIdx;
+	HGLOBAL hCutBuffer;
+	LPSTR lpCutBuffer;
+	SCREEN *pScr;
+	
+	pScr = (SCREEN *) GetWindowLong(hWnd, SCREEN_HANDLE);
+	assert(pScr != NULL);
+
+	hCutBuffer= GlobalAlloc(GHND, (DWORD) (pScr->width * pScr->height + 1));
+	lpCutBuffer= GlobalLock(hCutBuffer);
+
+	if (iLocStart > iLocEnd) { /* swap variables */
+		iTmp = iLocStart;
+		iLocStart = iLocEnd;
+		iLocEnd = iLocStart;
+	}
+	iTmp = iLocStart;
+	iIdx = 0;
+	while (iTmp < iLocEnd) {
+		if (!cInvertedArray[iTmp]) {
+			lpCutBuffer[iIdx++] = '\r';
+			lpCutBuffer[iIdx++] = '\n';
+			iTmp = (((int) (iTmp / pScr->width)) + 1) * pScr->width;
+			continue;
+		}
+		lpCutBuffer[iIdx++] = cInvertedArray[iTmp++];
+	}
+	lpCutBuffer[iIdx] = 0;
+	GlobalUnlock(hCutBuffer);
+	OpenClipboard(hWnd);
+	EmptyClipboard();
+	SetClipboardData(CF_TEXT, hCutBuffer);
+	CloseClipboard();
+
+} /* Edit_Copy */
+
+
+void Edit_Paste(
+	HWND hWnd)
+{
+	HGLOBAL hClipMemory;
+	static HGLOBAL hMyClipBuffer;
+	LPSTR lpClipMemory;
+	LPSTR lpMyClipBuffer;
+	SCREEN *pScr;                              
+	
+	if (hMyClipBuffer)
+		GlobalFree(hMyClipBuffer);
+	OpenClipboard(hWnd);
+	hClipMemory = GetClipboardData(CF_TEXT);
+	hMyClipBuffer = GlobalAlloc(GHND, GlobalSize(hClipMemory));
+	lpMyClipBuffer = GlobalLock(hMyClipBuffer);
+	lpClipMemory= GlobalLock(hClipMemory);
+	
+	pScr = (SCREEN *) GetWindowLong(hWnd, SCREEN_HANDLE);
+	assert(pScr != NULL);
+
+	lstrcpy(lpMyClipBuffer, lpClipMemory);
 //    OutputDebugString(lpMyClipBuffer);
-    PostMessage(fpScr->hwndTel,WM_MYSCREENBLOCK,(WPARAM)hMyClipBuffer,
-                    (HSCREEN)hgScr);                
-    CloseClipboard();                    
-    GlobalUnlock(hClipMemory);
-    GlobalUnlock(hMyClipBuffer);    
-}
-
-void Edit_LbuttonDblclk(HWND hWnd,LPARAM lParam) {
-    HDC hDC;
-    SCREEN *fpScr;
-    HGLOBAL hgScr;
-    int iTmp,iTmp2,iXlocStart,iYloc;
-    HSCREENLINE hgScrLine;
-    SCREENLINE *fpScrLine;
-        
-    hgScr=(HGLOBAL)GetWindowWord(hWnd,SCREEN_HANDLE);
-    if (hgScr == NULL) OutputDebugString("Hosed #1.\r\n");
-    fpScr=(SCREEN *)GlobalLock(hgScr);
-    if (fpScr == NULL) OutputDebugString("Hosed #2.\r\n");
-    
-    hDC=GetDC(hWnd);
-    for (iTmp=0; iTmp < fpScr->width*fpScr->height; iTmp++) {        
-        if (cInvertedArray[iTmp]) {
-            PatBlt(hDC,(iTmp%fpScr->width)*fpScr->cxChar,(int)(iTmp/fpScr->width)*fpScr->cyChar,
-                fpScr->cxChar,fpScr->cyChar,DSTINVERT);                
-            cInvertedArray[iTmp]=0;                    
-        }    
-    }
-    bSelection=FALSE;
-    iXlocStart=(int)LOWORD(lParam)/fpScr->cxChar;
-	if (iXlocStart >= fpScr->width)
-		iXlocStart = fpScr->width - 1;
-    iYloc=(int)HIWORD(lParam)/fpScr->cyChar;
-	if (iYloc >= fpScr->height)
-		iYloc = fpScr->height - 1;
-    iLocStart=iXlocStart+(iYloc*fpScr->width);
-    
-    hgScrLine=GetScreenLineFromY(fpScr,iYloc);
-    fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-    
-    iTmp=iXlocStart;
-    while (isalnum((int)fpScrLine->text[iTmp])) {
-        PatBlt(hDC,iTmp*fpScr->cxChar,iYloc*fpScr->cyChar,
-             fpScr->cxChar,fpScr->cyChar,DSTINVERT);                    
-        cInvertedArray[iTmp+(iYloc*fpScr->width)]=fpScrLine->text[iTmp];
-        iTmp++;
-    }
-    iTmp2=iXlocStart-1;
-    while (isalnum((int)fpScrLine->text[iTmp2])) {
-        PatBlt(hDC,iTmp2*fpScr->cxChar,iYloc*fpScr->cyChar,
-             fpScr->cxChar,fpScr->cyChar,DSTINVERT);                        
-        cInvertedArray[iTmp2+(iYloc*fpScr->width)]=fpScrLine->text[iTmp2];
-        iTmp2--;
-    }    
-    iLocStart=(iTmp2+1)+(iYloc*fpScr->width);
-    iLocEnd=(iTmp)+(iYloc*fpScr->width);        
-
-    bSelection=TRUE;
-    ReleaseDC(hWnd,hDC);
-    LINE_MEM_UNLOCK(hgScrLine);        
-    GlobalUnlock(hgScr);
-}
-
-void Edit_TripleClick(HWND hWnd,LPARAM lParam) {
-    HDC hDC;
-    SCREEN *fpScr;
-    HGLOBAL hgScr;
-    int iTmp,iYloc;
-    HSCREENLINE hgScrLine;
-    SCREENLINE *fpScrLine;
-        
+	PostMessage(pScr->hwndTel, WM_MYSCREENBLOCK, (WPARAM) hMyClipBuffer, (LPARAM) pScr);
+	CloseClipboard();                    
+	GlobalUnlock(hClipMemory);
+	GlobalUnlock(hMyClipBuffer);    
+
+} /* Edit_Paste */
+
+
+void Edit_LbuttonDblclk(
+	HWND hWnd,
+	LPARAM lParam)
+{
+	HDC hDC;
+	SCREEN *pScr;
+	int iTmp;
+	int iTmp2;
+	int iXlocStart;
+	int iYloc;
+	SCREENLINE *pScrLine;
+		
+	pScr = (SCREEN *) GetWindowLong(hWnd, SCREEN_HANDLE);
+	assert(pScr != NULL);
+	
+	hDC = GetDC(hWnd);
+	for (iTmp = 0; iTmp < pScr->width * pScr->height; iTmp++) {        
+		if (cInvertedArray[iTmp]) {
+			PatBlt(hDC, (iTmp % pScr->width) * pScr->cxChar,
+				(int) (iTmp / pScr->width) * pScr->cyChar,
+				pScr->cxChar, pScr->cyChar, DSTINVERT);
+			cInvertedArray[iTmp] = 0;
+		}
+	}
+	bSelection = FALSE;
+	iXlocStart = (int) LOWORD(lParam) / pScr->cxChar;
+	if (iXlocStart >= pScr->width)
+		iXlocStart = pScr->width - 1;
+	iYloc = (int) HIWORD(lParam) / pScr->cyChar;
+	if (iYloc >= pScr->height)
+		iYloc = pScr->height - 1;
+	iLocStart = iXlocStart + (iYloc * pScr->width);
+
+	pScrLine = GetScreenLineFromY(pScr, iYloc);
+
+	iTmp = iXlocStart;
+	while (isalnum((int) pScrLine->text[iTmp])) {
+		PatBlt(hDC, iTmp * pScr->cxChar, iYloc * pScr->cyChar,
+			 pScr->cxChar, pScr->cyChar, DSTINVERT);
+		cInvertedArray[iTmp + (iYloc * pScr->width)] = pScrLine->text[iTmp];
+		iTmp++;
+	}
+	iTmp2 = iXlocStart - 1;
+	while (isalnum((int) pScrLine->text[iTmp2])) {
+		PatBlt(hDC, iTmp2 * pScr->cxChar, iYloc * pScr->cyChar,
+			 pScr->cxChar, pScr->cyChar, DSTINVERT);
+		cInvertedArray[iTmp2 + (iYloc * pScr->width)] = pScrLine->text[iTmp2];
+		iTmp2--;
+	}
+	iLocStart = (iTmp2 + 1) + (iYloc * pScr->width);
+	iLocEnd = iTmp + (iYloc * pScr->width);
+
+	bSelection = TRUE;
+	ReleaseDC(hWnd, hDC);
+
+} /* Edit_LbuttonDblclk */
+
+
+void Edit_TripleClick(
+	HWND hWnd,
+	LPARAM lParam)
+{
+	HDC hDC;
+	SCREEN *pScr;
+	int iTmp;
+	int iYloc;
+	SCREENLINE *pScrLine;
+		
 //    OutputDebugString("Triple Click \r\n");
-    hgScr=(HGLOBAL)GetWindowWord(hWnd,SCREEN_HANDLE);
-    if (hgScr == NULL) OutputDebugString("Hosed #1.\r\n");
-    fpScr=(SCREEN *)GlobalLock(hgScr);
-    if (fpScr == NULL) OutputDebugString("Hosed #2.\r\n");
-    
-    hDC=GetDC(hWnd);
-    for (iTmp=0; iTmp < fpScr->width*fpScr->height; iTmp++) {        
-        if (cInvertedArray[iTmp]) {
-            PatBlt(hDC,(iTmp%fpScr->width)*fpScr->cxChar,(int)(iTmp/fpScr->width)*fpScr->cyChar,
-                fpScr->cxChar,fpScr->cyChar,DSTINVERT);                
-            cInvertedArray[iTmp]=0;                    
-        }    
-    }
-    bSelection=FALSE;
-    iYloc=(int)HIWORD(lParam)/fpScr->cyChar;
-	if (iYloc >= fpScr->height)
-		iYloc = fpScr->height - 1;
-    iLocStart=(iYloc*fpScr->width);
-    
-    hgScrLine=GetScreenLineFromY(fpScr,iYloc);
-    fpScrLine=(SCREENLINE *)LINE_MEM_LOCK(hgScrLine);
-    
-    for (iTmp=0; iTmp<fpScr->width; iTmp++) {
-        if (fpScrLine->text[iTmp]) {
-            PatBlt(hDC,iTmp*fpScr->cxChar,iYloc*fpScr->cyChar,
-                 fpScr->cxChar,fpScr->cyChar,DSTINVERT);                    
-            cInvertedArray[iTmp+(iYloc*fpScr->width)]=fpScrLine->text[iTmp];
-        } else break;    
-    }
-    iLocEnd=(iTmp+(iYloc*fpScr->width));
-
-    bSelection=TRUE;
-    ReleaseDC(hWnd,hDC);
-    LINE_MEM_UNLOCK(hgScrLine);        
-    GlobalUnlock(hgScr);
-}
+	pScr = (SCREEN *) GetWindowLong(hWnd, SCREEN_HANDLE);
+	assert(pScr != NULL);
+	
+	hDC = GetDC(hWnd);
+	for (iTmp = 0; iTmp < pScr->width * pScr->height; iTmp++) {        
+		if (cInvertedArray[iTmp]) {
+			PatBlt(hDC, (iTmp % pScr->width) * pScr->cxChar,
+				(int) (iTmp / pScr->width) * pScr->cyChar,
+				pScr->cxChar, pScr->cyChar, DSTINVERT);
+			cInvertedArray[iTmp] = 0;
+		}    
+	}
+	bSelection = FALSE;
+	iYloc = (int) HIWORD(lParam) / pScr->cyChar;
+	if (iYloc >= pScr->height)
+		iYloc = pScr->height - 1;
+	iLocStart = iYloc * pScr->width;
+	
+	pScrLine = GetScreenLineFromY(pScr, iYloc);
+	
+	for (iTmp = 0; iTmp < pScr->width; iTmp++) {
+		if (pScrLine->text[iTmp]) {
+			PatBlt(hDC, iTmp * pScr->cxChar, iYloc * pScr->cyChar,
+				 pScr->cxChar, pScr->cyChar, DSTINVERT);
+			cInvertedArray[iTmp + (iYloc * pScr->width)] = pScrLine->text[iTmp];
+		}
+		else
+			break;
+	}
+	iLocEnd = iTmp + (iYloc * pScr->width);
+
+	bSelection = TRUE;
+	ReleaseDC(hWnd, hDC);
+
+} /* Edit_TripleClick */