* added documentation (in-code and pasdoc generated)

[glBitmap.git] / examples / SimpleLoadFromFile / SimpleLoadFromFile.lpr

diff --git a/examples/SimpleLoadFromFile/SimpleLoadFromFile.lpr b/examples/SimpleLoadFromFile/SimpleLoadFromFile.lpr
new file mode 100644 (file)
index 0000000..cb7cc15
--- /dev/null
+++ b/examples/SimpleLoadFromFile/SimpleLoadFromFile.lpr
@@ -0,0 +1,56 @@
+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.
+