Thread: Take screenshot with directX?

I think he has XNA and DX mixed up in the same code. D3DXSaveTextureToFile() will work.

Originally Posted by Elysia

SurfaceLoader is not defined anywhere.
You can't use something of which you haven't created. That simple.
That is why you get that compile error.

But SurfaceLoader is a class/function in dx?
http://msdn.microsoft.com/en-us/libr...30(VS.85).aspx
So, how do I define in?

Originally Posted by Bubba

I think he has XNA and DX mixed up in the same code. D3DXSaveTextureToFile() will work.

I get the same error :/
"undefined reference to `D3DXSaveTextureToFileA@16'"

Originally Posted by Elysia

Did you link against the correct lib?

Yes
I tried to add all the libs to my project and i even tried to use the "unicode version", but I get the same error.

This is one of the articles: http://www.codeproject.com/KB/dialog/screencap.aspx

Now I have installed the directX Dev-pack for dev-c++, and the samples works fine and my program compiles as it should.
But, when I try to start my program it crashes.

When I debug it I get the error: "An access volation (Segmentation Fault) raised in your program" and highlights the row “g_pd3dDevice->CreateOffscreenPlainSurface(“
When I comment out all the "->" rows the program works fine, I think is something whit "g_pd3dDevice->".

I find the code in a other forum, and it seems to work for all the outers
I am probably doing something wrong, so if someone can take a last look =)

Code:

#include <d3d9.h>
#include <d3dx9.h>
//#include <D3dx9tex.h>
#include <windows.h>
//#pragma comment(lib,"d3d9.lib")
//#pragma comment(lib,"d3dx9.lib")

IDirect3DDevice9*	g_pd3dDevice=NULL;
IDirect3DSurface9*	g_pSurface=NULL;

bool SaveScreenShot( char *fileName, _D3DXIMAGE_FILEFORMAT ImgFormat);

INT WINAPI WinMain( HINSTANCE hInstance, HINSTANCE, LPSTR, int nCmdShow )
{
    
    SaveScreenShot("test.bmp",D3DXIFF_BMP);
    //g_pd3dDevice->CreateOffscreenPlainSurface(200, 300, D3DFMT_A8R8G8B8, D3DPOOL_SCRATCH, &g_pSurface, NULL);
    //g_pd3dDevice->GetFrontBufferData(0, g_pSurface);
    //g_pd3dDevice->CreateTexture(200,300,0,0,D3DFMT_A8R8G8B8,D3DPOOL_SCRATCH, &g_pTexture,NULL);
    //this
    //SurfaceLoader.Save("Screenshot.bmp", 0, g_pSurface);
    //or???
    //D3DXSaveSurfaceToFile("Screenshot.bmp",D3DXIFF_BMP,g_pSurface,NULL,NULL);
    //g_pSurface->Release();
    return 0;
}

bool SaveScreenShot( char *fileName, _D3DXIMAGE_FILEFORMAT ImgFormat)
{
	HRESULT hr;	
	
	//The front buffer used to get the screenshot	
	LPDIRECT3DSURFACE9 buffer = NULL; 
	
	
	// Create a surface for the screenshot to be rendered to	
	if( FAILED( hr = g_pd3dDevice->CreateOffscreenPlainSurface( 
		1024,
		768,	
		D3DFMT_A8R8G8B8, D3DPOOL_SCRATCH, &buffer, NULL ) ) )		
		return false;	
	
	// Write the front buffer to the surface 	
	if( FAILED( hr = g_pd3dDevice->GetFrontBufferData( 0, buffer ) ) )
		{			
			//mGCLog.Error("Cannot Acquire front buffer...");			
			buffer->Release();			
			
			return false;		
		}	
				
	D3DXSaveSurfaceToFile( fileName, ImgFormat, buffer, NULL, NULL );	
	
	// Cleanup	
	buffer->Release();		
	return true;
}

Yes, you probably have right, but I don´t think it is something to do with bad code. or?
because I can start a program that looks like this:

Code:

#include <d3d9.h>
#include <d3dx9.h>
#include <windows.h>

IDirect3DDevice9*	g_pd3dDevice=NULL;
IDirect3DSurface9*	g_pSurface=NULL;

INT WINAPI WinMain( HINSTANCE hInstance, HINSTANCE, LPSTR, int nCmdShow )
{
    return 0;
}

But when I try to start this it crashes:

Code:

#include <d3d9.h>
#include <d3dx9.h>
#include <windows.h>

IDirect3DDevice9*	g_pd3dDevice=NULL;
IDirect3DSurface9*	g_pSurface=NULL;

INT WINAPI WinMain( HINSTANCE hInstance, HINSTANCE, LPSTR, int nCmdShow )
{
    g_pd3dDevice->CreateOffscreenPlainSurface(200, 300, D3DFMT_A8R8G8B8, D3DPOOL_SCRATCH, &g_pSurface, NULL);
    g_pSurface->Release();
    return 0;
}

I probably need to turn to a devc++ forum now? If someone can´t find anything.