nanogui: Thread: Re: regarding creation of Button

kourla ashok kumar reddy ####@####.#### wrote:  Date: Tue, 12 Sep 2006 11:30:16 +0100 (BST)
From: kourla ashok kumar reddy ####@####.####
Subject: regarding creation of Button
To: ####@####.####

  Hi Greg,
   
  I used the below program to create Button , but i was not able to create it.
  Please help regarding this.
   
   
  #include "windows.h"
#include "wintools.h"
#define IDOK 1
#define APPCHILD "BUTTON"
  extern MWIMAGEHDR image_penguin;
  PMWIMAGEHDR image = &image_penguin;
  
LRESULT CALLBACK ChildWndProc(HWND hwnd,UINT uMsg,WPARAM wp,LPARAM lp);
  int
RegisterAppClass(void)
{
 WNDCLASS wc;
   wc.style = CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW;
 wc.lpfnWndProc = (WNDPROC)ChildWndProc;
 wc.cbClsExtra = 0;
 wc.cbWndExtra = 0;
 wc.hInstance = 0;
 wc.hIcon = 0; /*LoadIcon(GetHInstance(), MAKEINTRESOURCE( 1));*/
 wc.hCursor = 0; /*LoadCursor(NULL, IDC_ARROW);*/
 wc.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
 //wc.hbrBackground = NULL;
 wc.lpszMenuName = "OK";
 wc.lpszClassName =  APPCHILD;
 return RegisterClass( &wc);
}
  LRESULT CALLBACK
ChildWndProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp)
{
 HDC  hdc,hdcMem;
 HBITMAP  hbmp, hbmpOrg;
 RECT  rc;
 PAINTSTRUCT ps;
 
 switch(msg) {
 case WM_PAINT:
  BeginPaint(hwnd, &ps);
  
  GdSetForegroundColor(hdc->psd, RGB(255,255,255));
  
    GetClientRect(hwnd, &rc);
    /* redirect painting to offscreen dc*/
  hdcMem = CreateCompatibleDC(ps.hdc);
  hbmp = CreateCompatibleBitmap(hdcMem, image->width, image->height);
  hbmpOrg = SelectObject(hdcMem, hbmp);
    /* draw onto offscreen dc*/
 DrawDIB(hdcMem, 0, 0, image);
    /* stretch blit offscreen with physical screen*/
         
       StretchBlt(ps.hdc, 0, 0, rc.right, rc.bottom, hdcMem,
      0, 0, image->width, image->height, MWROP_SRCCOPY);
  DeleteObject(SelectObject(hdcMem, hbmpOrg));
  DeleteDC(hdcMem);
  EndPaint(hwnd, &ps);
  break;
 default:
  return DefWindowProc( hwnd, msg, wp, lp);
  return 0;
 }
 return 0;
}
  int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
static HWND hOK;
HWND hwnd;
TCHAR* item = TEXT("BUTTON");    
TCHAR* label = TEXT("OK");  
MSG  msg;
RECT rc;
 
RegisterAppClass();
GetWindowRect(GetDesktopWindow(), &rc);
  
 hOK = CreateWindow(item, label, WS_CHILD | BS_PUSHBUTTON |WS_BORDER| WS_VISIBLE,0, GetSystemMetrics(SM_CYSCREEN)-100,
120, 26, GetDesktopWindow(), (HMENU)IDOK, 0, 0L); 
                 
ShowWindow(hOK, SW_SHOWNORMAL);
while( GetMessage(&msg, NULL, 0, 0)) {
  TranslateMessage(&msg);
  DispatchMessage(&msg);
 }
return 0;
  //GetSystemMetrics(SM_CYSCREEN)
}

  Regards,
  Ashok
    
---------------------------------
  
 				
---------------------------------
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kourla ashok kumar reddy ####@####.#### wrote:  Date: Tue, 12 Sep 2006 11:30:16 +0100 (BST)
From: kourla ashok kumar reddy ####@####.####
Subject: regarding creation of Button
To: ####@####.####

  Hi Greg,
   
  I used the below program to create Button , but i was not able to create it.
  Please help regarding this.
   
   
  #include "windows.h"
#include "wintools.h"
#define IDOK 1
#define APPCHILD "BUTTON"
  extern MWIMAGEHDR image_penguin;
  PMWIMAGEHDR image = &image_penguin;
  
LRESULT CALLBACK ChildWndProc(HWND hwnd,UINT uMsg,WPARAM wp,LPARAM lp);
  int
RegisterAppClass(void)
{
 WNDCLASS wc;
   wc.style = CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW;
 wc.lpfnWndProc = (WNDPROC)ChildWndProc;
 wc.cbClsExtra = 0;
 wc.cbWndExtra = 0;
 wc.hInstance = 0;
 wc.hIcon = 0; /*LoadIcon(GetHInstance(), MAKEINTRESOURCE( 1));*/
 wc.hCursor = 0; /*LoadCursor(NULL, IDC_ARROW);*/
 wc.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
 //wc.hbrBackground = NULL;
 wc.lpszMenuName = "OK";
 wc.lpszClassName =  APPCHILD;
 return RegisterClass( &wc);
}
  LRESULT CALLBACK
ChildWndProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp)
{
 HDC  hdc,hdcMem;
 HBITMAP  hbmp, hbmpOrg;
 RECT  rc;
 PAINTSTRUCT ps;
 
 switch(msg) {
 case WM_PAINT:
  BeginPaint(hwnd, &ps);
  
  GdSetForegroundColor(hdc->psd, RGB(255,255,255));
  
    GetClientRect(hwnd, &rc);
    /* redirect painting to offscreen dc*/
  hdcMem = CreateCompatibleDC(ps.hdc);
  hbmp = CreateCompatibleBitmap(hdcMem, image->width, image->height);
  hbmpOrg = SelectObject(hdcMem, hbmp);
    /* draw onto offscreen dc*/
 DrawDIB(hdcMem, 0, 0, image);
    /* stretch blit offscreen with physical screen*/
         
       StretchBlt(ps.hdc, 0, 0, rc.right, rc.bottom, hdcMem,
      0, 0, image->width, image->height, MWROP_SRCCOPY);
  DeleteObject(SelectObject(hdcMem, hbmpOrg));
  DeleteDC(hdcMem);
  EndPaint(hwnd, &ps);
  break;
 default:
  return DefWindowProc( hwnd, msg, wp, lp);
  return 0;
 }
 return 0;
}
  int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
{
static HWND hOK;
HWND hwnd;
TCHAR* item = TEXT("BUTTON");    
TCHAR* label = TEXT("OK");  
MSG  msg;
RECT rc;
 
RegisterAppClass();
GetWindowRect(GetDesktopWindow(), &rc);
  
 hOK = CreateWindow(item, label, WS_CHILD | BS_PUSHBUTTON |WS_BORDER| WS_VISIBLE,0, GetSystemMetrics(SM_CYSCREEN)-100,
120, 26, GetDesktopWindow(), (HMENU)IDOK, 0, 0L); 
                 
ShowWindow(hOK, SW_SHOWNORMAL);
while( GetMessage(&msg, NULL, 0, 0)) {
  TranslateMessage(&msg);
  DispatchMessage(&msg);
 }
return 0;
  //GetSystemMetrics(SM_CYSCREEN)
}

  Regards,
  Ashok
    
---------------------------------
  
 				
---------------------------------
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Ashkok -

You need to create and register your application class
to be different than "BUTTON", which is already
registered by Microwindows.  You will then need
two CreateWindows in WinMain, one to create
your application window, the other to create the
child button.  See some of the example
code in src/demos/mwin

Regards,

Greg

:   I used the below program to create Button , but i was not able to create
it.
:   Please help regarding this.
:
:
:   #include "windows.h"
: #include "wintools.h"
: #define IDOK 1
: #define APPCHILD "BUTTON"
:   extern MWIMAGEHDR image_penguin;
:   PMWIMAGEHDR image = &image_penguin;
:
: LRESULT CALLBACK ChildWndProc(HWND hwnd,UINT uMsg,WPARAM wp,LPARAM lp);
:   int
: RegisterAppClass(void)
: {
:  WNDCLASS wc;
:    wc.style = CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW;
:  wc.lpfnWndProc = (WNDPROC)ChildWndProc;
:  wc.cbClsExtra = 0;
:  wc.cbWndExtra = 0;
:  wc.hInstance = 0;
:  wc.hIcon = 0; /*LoadIcon(GetHInstance(), MAKEINTRESOURCE( 1));*/
:  wc.hCursor = 0; /*LoadCursor(NULL, IDC_ARROW);*/
:  wc.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
:  //wc.hbrBackground = NULL;
:  wc.lpszMenuName = "OK";
:  wc.lpszClassName =  APPCHILD;
:  return RegisterClass( &wc);
: }
:   LRESULT CALLBACK
: ChildWndProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp)
: {
:  HDC  hdc,hdcMem;
:  HBITMAP  hbmp, hbmpOrg;
:  RECT  rc;
:  PAINTSTRUCT ps;
:
:  switch(msg) {
:  case WM_PAINT:
:   BeginPaint(hwnd, &ps);
:
:   GdSetForegroundColor(hdc->psd, RGB(255,255,255));
:
:     GetClientRect(hwnd, &rc);
:     /* redirect painting to offscreen dc*/
:   hdcMem = CreateCompatibleDC(ps.hdc);
:   hbmp = CreateCompatibleBitmap(hdcMem, image->width, image->height);
:   hbmpOrg = SelectObject(hdcMem, hbmp);
:     /* draw onto offscreen dc*/
:  DrawDIB(hdcMem, 0, 0, image);
:     /* stretch blit offscreen with physical screen*/
:
:        StretchBlt(ps.hdc, 0, 0, rc.right, rc.bottom, hdcMem,
:       0, 0, image->width, image->height, MWROP_SRCCOPY);
:   DeleteObject(SelectObject(hdcMem, hbmpOrg));
:   DeleteDC(hdcMem);
:   EndPaint(hwnd, &ps);
:   break;
:  default:
:   return DefWindowProc( hwnd, msg, wp, lp);
:   return 0;
:  }
:  return 0;
: }
:   int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
:     LPSTR lpCmdLine, int nCmdShow)
: {
: static HWND hOK;
: HWND hwnd;
: TCHAR* item = TEXT("BUTTON");
: TCHAR* label = TEXT("OK");
: MSG  msg;
: RECT rc;
:
: RegisterAppClass();
: GetWindowRect(GetDesktopWindow(), &rc);
:
:  hOK = CreateWindow(item, label, WS_CHILD | BS_PUSHBUTTON |WS_BORDER|
WS_VISIBLE,0, GetSystemMetrics(SM_CYSCREEN)-100,
: 120, 26, GetDesktopWindow(), (HMENU)IDOK, 0, 0L);
:
: ShowWindow(hOK, SW_SHOWNORMAL);
: while( GetMessage(&msg, NULL, 0, 0)) {
:   TranslateMessage(&msg);
:   DispatchMessage(&msg);
:  }
: return 0;
:   //GetSystemMetrics(SM_CYSCREEN)
: }
:
:   Regards,
:   Ashok
:
: ---------------------------------
:
:
: ---------------------------------
:  Find out what India is talking about on  - Yahoo! Answers India
:  Send FREE SMS to your friend's mobile from Yahoo! Messenger Version 8.
Get it NOW