I came across very strange problem in my application and can't firgure out the solution... The error occurs only if I'am creating the GetOpenFileName dialog box. I have described the problem as comments in code below.
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR CommandLine, int nCmdShow)
{
// Creating window here and initialising DirectX
//this loads common modern controls
INITCOMMONCONTROLSEX cc;
cc.dwSize=sizeof(INITCOMMONCONTROLSEX);
cc.dwICC= ICC_STANDARD_CLASSES;
InitCommonControlsEx(&cc);
Input::Obj().CreateInterface(hInstance); /* the code of this function is below. When I put it before LoadTextures() debugger gives an error in Render() function, but when I put this function after LoadTextures() everything works fine...*/
Graphics::Obj().LoadTextures(); //in this function I load sprites and do: D3DXCreateSprite(Input::Obj().d3dDevice, &Input::Obj().Sprite);
ShowWindow( Input::Obj().hwnd, nCmdShow );
UpdateWindow( Input::Obj().hwnd );
MSG msg;
ZeroMemory(&msg, sizeof(msg));
while(GetMessage(&msg, NULL, 0, 0) > 0) //NAJPOPRAWNIEJSZA FORMA, while czy if?
{
TranslateMessage(&msg);
DispatchMessage(&msg);
//Render() function is ran as an answer to WM_PAINT message in WindowProcedure callback function.
}
return msg.wParam;
}void Input::CreateInterface(HINSTANCE hInstance)
{
//Creating common Loading file dialog box
OPENFILENAME ofn;
ZeroMemory( & ofn, sizeof( ofn ) );
ofn.lStructSize = sizeof( ofn );
ofn.lpstrFilter = "text files (*.txt)\0*.txt\0";
ofn.nMaxFile = MAX_PATH;
ofn.lpstrFile = Input::Obj().FileName;
ofn.lpstrDefExt = "txt";
ofn.Flags = OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
ofn.hwndOwner = hwnd;
GetOpenFileName( & ofn );
}bool Graphics::Render()
{
HRESULT hr = Input::Obj().d3dDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(255, 255, 255), 1.0f, 0);
if(FAILED(hr)) return false;
hr = Input::Obj().d3dDevice->BeginScene();
if(FAILED(hr)) return false;
Input::Obj().Sprite->Begin(D3DXSPRITE_ALPHABLEND); /*when CreateInterface(...) function is before LoadTextures debugger gives error here, saying Unhandled exception at 0x00412cac in program.exe: 0xC0000005: Access violation reading location 0x00000000.*/
Input::Obj().DrawSprite(500, 680, 1, 0, 0, Input::Obj().Tex_width[0], Input::Obj().Tex_height[0], false, 0);
Input::Obj().Sprite->End();
hr = Input::Obj().d3dDevice->EndScene();
if(FAILED(hr)) return false;
hr = Input::Obj().d3dDevice->Present(NULL, NULL, NULL, NULL);
if(FAILED(hr)) return false;
return true;
}It just drives me mad how replacing 2 functions (LoadTextures() and CreateInterface(...)) makes this program crashing... Even if LoadTextures is empty inside if it is ran before CreateInterface debugger doesn't shout. When I run my program without LoadTextures() function it crashes just like when I call this function after CreateInterface(...).
I would be really very grateful for help
