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OverlayWndProc: Fix flickering issue

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The flickering was caused by DefWindowProc trying to erase the background, then GDI painting back in the bitmap. By not letting DefWindowProc draw the background, flickering is effectively removed.

git-svn-id: svn://vcs.sdm.2ki.xyz/Grabby/trunk@15 27729192-006e-004d-b9b5-06fbd0ef7001
This commit is contained in:
snow flurry 2024-02-20 02:37:01 +00:00
parent 94989c680a
commit be95698d10
1 changed files with 3 additions and 0 deletions
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3
Overlay.c
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@ -179,6 +179,9 @@ OverlayWndProc(HWND hWnd,
EndPaint(hWnd, &ps); EndPaint(hWnd, &ps);
break; break;
case WM_ERASEBKGND:
// Do nothing
return 1;
case WM_MOUSEMOVE: case WM_MOUSEMOVE:
if (isDrag && (wParam & MK_LBUTTON)) { if (isDrag && (wParam & MK_LBUTTON)) {
POINTS ptPrev = ptCur; POINTS ptPrev = ptCur;