--- /dev/null
+program SimpleLoadFromFile;
+
+{$mode objfpc}{$H+}
+
+uses
+ {$IFDEF UNIX}{$IFDEF UseCThreads}
+ cthreads,
+ {$ENDIF}{$ENDIF}
+ Classes, Windows, SysUtils, dglOpenGL, glBitmap, Helper;
+
+var
+ oglWindow: TOpenGLWindow;
+ running: Boolean = true;
+ tex: TglBitmap2D;
+
+function WindowProc(hWnd: HWND; Msg: UINT; wParam: WPARAM; lParam: LPARAM): LRESULT; stdcall;
+begin
+ case Msg of
+ WM_DESTROY: begin
+ running := false;
+ end;
+ end;
+ result := DefWindowProc(hWnd, Msg, wParam, lParam);
+end;
+
+procedure RenderLoop;
+begin
+ tex.Bind();
+ glColor4f(1, 1, 1, 1);
+ glBegin(GL_QUADS);
+ glTexCoord2f(0, 0); glVertex2f(100, 100);
+ glTexCoord2f(1, 0); glVertex2f(700, 100);
+ glTexCoord2f(1, 1); glVertex2f(700, 500);
+ glTexCoord2f(0, 1); glVertex2f(100, 500);
+ glEnd;
+ tex.Unbind();
+end;
+
+begin
+ oglWindow := CreateOpenGLWindow('SimpleLoadFromFile', 800, 600, @WindowProc);
+ try
+ // load texture
+ tex := TglBitmap2D.Create;
+ tex.LoadFromFile(ExtractFilePath(ApplicationName) + '../textures/BMP_24_RGB8.bmp');
+ tex.GenTexture;
+
+ while running and ProgressMesages do begin
+ RenderLoop;
+ SwapBuffers(oglWindow.DC);
+ end;
+ finally
+ FreeAndNil(tex);
+ DestroyOpenGLWindow(oglWindow);
+ end;
+end.
+