panda quit when calling destroywindow method from directx

Scripting Issues
1

Hi, I have a little problem.

I created an external library in c++ and made a dll. With boost, I can acces this library with python and all works well, except one method.
This method convert procedural texture in jpg, using directx. When I call this method, my procedural texture is created and I can see the jpg on my hdd. But unfortunately, panda windows quit without saying anything except this :

shell returned -1073741819

After looking deeper in my c++ code, I found that it quits just after I call

hWnd = CreateWindow( "Test01", "Test01", 
WS_OVERLAPPEDWINDOW, 10, 10, 200, 150,
NULL, NULL, wc.hInstance, NULL );

If anybody knows what I am doing wrong, It’ll help me a lot.

Thanks.

2

Hmm, maybe you have loaded an incompatible directx dll? Or otherwise somehow corrupted the directx runtime for when Panda tries to invoke it?

Just shots in the dark here.

David

3

Yeah, that’s what i was thinking but if I launch panda in opengl, it shouldn’t interfere ?

If it interfere, yes, when I use the library, it changes the directx context to this :

Render states:
D3DRS_SRGBWRITEENABLE 0
D3DRS_SEPARATEALPHABLENDENABLE FALSE
D3DRS_STENCILENABLE FALSE
D3DRS_SCISSORTESTENABLE FALSE
D3DRS_ZFUNC D3DCMP_LESS
D3DRS_ZWRITEENABLE TRUE
D3DRS_SHADEMODE D3DSHADE_GOURAUD
D3DRS_FOGENABLE FALSE
D3DRS_SPECULARENABLE FALSE
D3DRS_FOGTABLEMODE D3DFOG_NONE

Sampler states for the first four samplers:
D3DSAMP_SRGBTEXTURE 0
D3DSAMP_ELEMENTINDEX 0

The DepthStencilSurface must be set to NULL.

Is it the problem with panda ?

4

In order to try to better understand and debug the problem, I used the c++ panda hello world, and call my method inside.
I finally manage to find the cause of the problem, but not really the “Why”.
In my library, I have an object BasicD3D. This object creates an hWnd with CreateWindow.
In his destructor, he calls DestroyWindow(hwnd) and here is the problem. It also kills panda window.
I didn’t find yet the reason, so if anybody has a clue.