[Bug 18041] Teamviewer 4 crash on Add group of Partner List

http://bugs.winehq.org/show_bug.cgi?id=18041

--- Comment #12 from [e-mail]  2009-09-08 10:13:46 ---
Hi,

I do not know if this is a desired solution but modifying GdiAlphaBlend in
bitblt.c does the trick and application works as desired.

BOOL WINAPI GdiAlphaBlend(...)
{
    BOOL ret = FALSE;
    DC *dcDst, *dcSrc;

dcSrc = get_dc_ptr( hdcSrc );

if ( !dcSrc ) return ret; <-- Insert this to get around nil Pointer

if ((dcDst = get_dc_ptr( hdcDst )))
    {

Best regards