I have a test program that shows how BitBlt does not support rotation, when the rotation is specified by SetWorldTransform. Interestinly, the Rectangle() function works correctly and the rectangle is rotated.

Here's a screenshot of the program in VirtualBox and in Wine.

Here is the code of the program. I'm setting a rotation XFORM, and then calling BitBlt. I load a bitmap file from the current directory for the BitBlt.

hdc = BeginPaint(hWnd, &ps);

double angle = 0.385398163;

XFORM xf;

xf.eDx = 0;

xf.eDy = 0;

xf.eM11 = cos(angle);

xf.eM12 = sin(angle);

xf.eM21 = -sin(angle);

xf.eM22 = cos(angle);

SetGraphicsMode(hdc, GM_ADVANCED);

SetWorldTransform(hdc, &xf);

HBITMAP hbmp = (HBITMAP) LoadImage( NULL, L"a.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);

HDC hmemdc = CreateCompatibleDC(hdc);

SelectObject(hmemdc, hbmp);

BitBlt(hdc, 100, 0, 150, 50, hmemdc, 0, 0, SRCCOPY);

EndPaint(hWnd, &ps);