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Fix NULL function pointer BeginPaint

This commit is contained in:
Armin Novak 2018-09-24 09:38:01 +02:00
parent a5f0fa818f
commit 1d77875a69
1 changed files with 9 additions and 3 deletions
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12
libfreerdp/gdi/gfx.c
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@ -94,6 +94,7 @@ static UINT gdi_ResetGraphics(RdpgfxClientContext* context,
static UINT gdi_OutputUpdate(rdpGdi* gdi, gdiGfxSurface* surface)
{
UINT rc = ERROR_INTERNAL_ERROR;
UINT32 nXDst, nYDst;
UINT32 nXSrc, nYSrc;
UINT16 width, height;
@ -118,7 +119,8 @@ static UINT gdi_OutputUpdate(rdpGdi* gdi, gdiGfxSurface* surface)
if (!(rects = region16_rects(&surface->invalidRegion, &nbRects)) || !nbRects)
return CHANNEL_RC_OK;
update->BeginPaint(gdi->context);
if (!IFCALLRESULT(TRUE, update->BeginPaint, gdi->context))
goto fail;
for (i = 0; i < nbRects; i++)
{
@ -139,9 +141,13 @@ static UINT gdi_OutputUpdate(rdpGdi* gdi, gdiGfxSurface* surface)
gdi_InvalidateRegion(gdi->primary->hdc, nXDst, nYDst, width, height);
}
update->EndPaint(gdi->context);
if (!IFCALLRESULT(FALSE, update->EndPaint, gdi->context))
goto fail;
rc = CHANNEL_RC_OK;
fail:
region16_clear(&(surface->invalidRegion));
return CHANNEL_RC_OK;
return rc;
}
static UINT gdi_UpdateSurfaces(RdpgfxClientContext* context)