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From: Jack on 18 Jan 2010 04:22
Hi,

case WM_PAINT:
hDC = BeginPaint(hWnd, &PaintStruct);

SetMapMode(hDC, MM_ISOTROPIC);
SetWindowExtEx(hDC, 450,450,NULL);
SetViewportExtEx(hDC, cxClient, -cyClient, NULL);
SetViewportOrgEx(hDC, 0, cyClient, NULL);
//[snip]
...
case WM_MOUSEMOVE:
int xPos, yPos;
xPos = LOWORD(lParam);
yPos = HIWORD(lParam);
char buff[80];
sprintf (buff, "%d", xPos);
SetWindowText(editField, buff);
sprintf (buff, "%d", yPos);
SetWindowText(editField2, buff);
break;
//..

I am wondering how I can make SetWindowText report the correct coordinates
as I am using the mapping mode which starts from the lower-left corner.
Currently, +ve x goes to the right and +ve y goes downwards. I'd like to
have +ve goes upwards and
starts from the lower-left corner.
Thanks
Jack



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