gradient.c File Reference

#include <windows.h>
#include <stdio.h>
#include <string.h>

Include dependency graph for gradient.c:

Go to the source code of this file.

Functions
BOOL WINAPI	GdiGradientFill (HDC hdc, TRIVERTEX *vert_array, ULONG nvert, void *grad_array, ULONG ngrad, ULONG mode)
LRESULT WINAPI	MainWndProc (HWND, UINT, WPARAM, LPARAM)
int WINAPI	WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow)

Function Documentation

GdiGradientFill()

BOOL WINAPI GdiGradientFill	(	HDC	hdc,
		TRIVERTEX *	vert_array,
		ULONG	nvert,
		void *	grad_array,
		ULONG	ngrad,
		ULONG	mode
	)

Referenced by draw_graphics(), MainWndProc(), MyDrawCaptionTemp(), PlayEnhMetaFileRecord(), and test_emf_GradientFill().

MainWndProc()

LRESULT WINAPI MainWndProc	(	HWND	hWnd,
		UINT	msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 71 of file gradient.c.

{
    HDC hDC;
 
    switch(msg)
    {
    case WM_PAINT:
    {
      PAINTSTRUCT ps;
      TRIVERTEX        vert [5] ;
          GRADIENT_TRIANGLE    gTRi[3];
          GRADIENT_RECT        gRect[2];
      hDC = BeginPaint(hWnd, &ps);
 
      vert [0] .x       =  0;
      vert [0] .y       =  0;
      vert [0] .Red     =  0xff00;
      vert [0] .Green   =  0xff00;
      vert [0] .Blue    =  0xff00;
      vert [0] .Alpha   =  0x0000;
 
      vert [1] .x       =  300;
      vert [1] .y       =  20;
      vert [1] .Red     =  0x0000;
      vert [1] .Green   =  0x0000;
      vert [1] .Blue    =  0xff00;
      vert [1] .Alpha   =  0x0000;
 
      vert [2] .x       =  100;
      vert [2] .y       =  200;
      vert [2] .Red     =  0xff00;
      vert [2] .Green   =  0x0000;
      vert [2] .Blue    =  0x0000;
      vert [2] .Alpha   =  0x0000;
 
      vert [3] .x       =  250;
      vert [3] .y       =  300;
      vert [3] .Red     =  0x8000;
      vert [3] .Green   =  0x8000;
      vert [3] .Blue    =  0x0000;
      vert [3] .Alpha   =  0x0000;
 
      vert [4] .x       =  325;
      vert [4] .y       =  300;
      vert [4] .Red     =  0x0000;
      vert [4] .Green   =  0xff00;
      vert [4] .Blue    =  0x0000;
      vert [4] .Alpha   =  0x0000;
 
      gTRi[0].Vertex1   = 0;
      gTRi[0].Vertex2   = 1;
      gTRi[0].Vertex3   = 2;
 
      gTRi[1].Vertex1   = 1;
      gTRi[1].Vertex2   = 2;
      gTRi[1].Vertex3   = 3;
 
      gTRi[2].Vertex1   = 1;
      gTRi[2].Vertex2   = 3;
      gTRi[2].Vertex3   = 4;
 
      GdiGradientFill(hDC,vert,5,&gTRi,3,GRADIENT_FILL_TRIANGLE);
 
 
      vert [0] .x      = 5;
      vert [0] .y      = 200;
      vert [0] .Red    = 0x0000;
      vert [0] .Green  = 0x0000;
      vert [0] .Blue   = 0x0000;
      vert [0] .Alpha  = 0x0000;
 
      vert [1] .x      = 90;
      vert [1] .y      = 240;
      vert [1] .Red    = 0x0000;
      vert [1] .Green  = 0x0000;
      vert [1] .Blue   = 0xff00;
      vert [1] .Alpha  = 0x0000;
 
      vert [2] .x      = 5;
      vert [2] .y      = 245;
      vert [2] .Red    = 0x0000;
      vert [2] .Green  = 0x0000;
      vert [2] .Blue   = 0x0000;
      vert [2] .Alpha  = 0x0000;
 
      vert [3] .x      = 90;
      vert [3] .y      = 300;
      vert [3] .Red    = 0x0000;
      vert [3] .Green  = 0x0000;
      vert [3] .Blue   = 0xff00;
      vert [3] .Alpha  = 0x0000;
 
      gRect[0].UpperLeft  = 0;
      gRect[0].LowerRight = 1;
 
      gRect[1].UpperLeft  = 2;
      gRect[1].LowerRight = 3;
 
      GdiGradientFill(hDC,vert,4,&gRect[0],1,GRADIENT_FILL_RECT_H);
      GdiGradientFill(hDC,vert,4,&gRect[1],1,GRADIENT_FILL_RECT_V);
 
          EndPaint(hWnd, &ps);
      break;
    }
 
    case WM_DESTROY:
      PostQuitMessage(0);
      break;
 
    default:
      return DefWindowProc(hWnd, msg, wParam, lParam);
    }
    return 0;
}

Referenced by WinMain().

WinMain()

int WINAPI WinMain	(	HINSTANCE	hInstance,
		HINSTANCE	hPrevInstance,
		LPSTR	lpszCmdLine,
		int	nCmdShow
	)

Definition at line 11 of file gradient.c.

{
  WNDCLASS wc;
  MSG msg;
  HWND hWnd;
 
  wc.lpszClassName = "GradientClass";
  wc.lpfnWndProc = MainWndProc;
  wc.style = CS_VREDRAW | CS_HREDRAW;
  wc.hInstance = hInstance;
  wc.hIcon = LoadIcon(NULL, (LPCTSTR)IDI_APPLICATION);
  wc.hCursor = LoadCursor(NULL, (LPCTSTR)IDC_ARROW);
  wc.hbrBackground = (HBRUSH)GetStockObject(GRAY_BRUSH);
  wc.lpszMenuName = NULL;
  wc.cbClsExtra = 0;
  wc.cbWndExtra = 0;
  if (RegisterClass(&wc) == 0)
    {
      fprintf(stderr, "RegisterClass failed (last error 0x%lX)\n",
          GetLastError());
      return(1);
    }
 
  hWnd = CreateWindow("GradientClass",
              "GradientFill Test",
              WS_OVERLAPPEDWINDOW|WS_HSCROLL|WS_VSCROLL,
              0,
              0,
              CW_USEDEFAULT,
              CW_USEDEFAULT,
              NULL,
              NULL,
              hInstance,
              NULL);
  if (hWnd == NULL)
    {
      fprintf(stderr, "CreateWindow failed (last error 0x%lX)\n",
          GetLastError());
      return(1);
    }
 
    //tf = CreateFontA(14, 0, 0, TA_BASELINE, FW_NORMAL, FALSE, FALSE, FALSE,
    //  ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
    //  DEFAULT_QUALITY, FIXED_PITCH|FF_DONTCARE, "Timmons");
 
  ShowWindow(hWnd, nCmdShow);
 
  while(GetMessage(&msg, NULL, 0, 0))
  {
    TranslateMessage(&msg);
    DispatchMessage(&msg);
  }
 
  //DeleteObject(tf);
 
  return msg.wParam;
}