Have you checked what the xid call returns? Probably 0, right? You need to
flush the event queue until the window is actually mapped:
while (!window.visible()) fltk::flush();
Apart from that, I have no idea what SDL does, and I find the way of using an
environment variable to pass the address (or ID) of an X-window more than
suspicious.
On 15.11.2010, at 16:27, Armin Steinhoff wrote:
Hi All,
I have tried to share a X window between FLTK and SDL.
Below is a subset of the used code:
-----------------------------------------------
int main(int argc, char **argv)
{
int w = 640; // must be > 104
int h = 480;
char winhack[64];
SDL_Rect rect;
Window window(w, h);
window.begin();
Button* b = new Button(0, 0, 40, 20, "Print");
b->callback(more_cb);
window.end();
window.show(argc,argv);
temp_1 = SDL_LoadBMP ("logo.bmp");
memset(winhack, 0x00, 64);
int wid = xid(&window);
sprintf( winhack, "SDL_WINDOWID=0x%X", wid);
putenv(winhack); // set the environment variable SDL_WINDOWID SDL_Init
(SDL_INIT_VIDEO);
screen = SDL_SetVideoMode (640, 480, 0, 0);
------------------------------------------------------------------------------------------
The call SDL_SetVideoMode prints the following out on the shell:
X_GetWindowAttributes: BadWindow (invalid Window parameter) 0x3800002
X_CreateColormap: BadMatch (invalid parameter attributes) 0x32840 X_CreateGC:
BadDrawable (invalid Pixmap or Window parameter) 0x3800002
X_ChangeWindowAttributes: BadWindow (invalid Window parameter) 0x3800002
XRequest.145: BadDrawable (invalid Pixmap or Window parameter) 0x3800002
X_ChangeWindowAttributes: BadWindow (invalid Window parameter) 0x3800002
X_QueryPointer: BadWindow (invalid Window parameter) 0x3800002 XRequest.145:
BadDrawable (invalid Pixmap or Window parameter) 0x3800002 Nothing is working
... what could be the problem ? --Armin
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