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MFC  , mdi forms

Posted on 2001-06-11
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Last Modified: 2013-11-20
can we place a combo box on mdi form,,, if not why
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Question by:chilappak
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4 Comments
 
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Expert Comment

by:sedgwick
ID: 6177637
u mean on the main frame's toolbar or just on one of the child windows, or maybe on the view....?
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Expert Comment

by:GlennDean
ID: 6179739
IF you want to put a combo box on the view in an MDI application, here's how to do that:
1.  Insert a new class called CMyComboBox, and have it inherit CComboBox
2.  In the view class, add a variable
   CMyComboBox m_CB
3.  In the view's OnInitialUpdate, go

void CMyView::OnInitialUpdate()
{
  CView::OnInitialUpdate();
     
  #define WS_STD    (WS_BORDER|WS_CHILD)
  #define WS_BUTTON (BS_DEFPUSHBUTTON|WS_CHILD)

  CRect rect(0,0,150,200);
  BOOL bCBCreated = m_CB.Create(WS_STD|CBS_DROPDOWN|WS_VSCROLL, rect,
this, IDC_VIEWCLASS_COMBOBOX);

  if (bCBCreated)
  {
    m_CB.ShowWindow(SW_SHOWNORMAL);
  }
}

  Glenn
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Accepted Solution

by:
GlennDean earned 50 total points
ID: 6179773
Forgot to tell you what IDC_VIEWCLASS_COMBOBOX is.  
1.  Go into the Resource.h file and record the
_APS_NEXT_CONTROL_VALUE (in a default MDI app it should be 1000)
2.  Add the line
#define IDC_VIEWCLASS_COMBOBOX "the recorded value from step 1"

3.  Add 1 to the _APS_NEXT_CONTROL_VALUE

4.  The new Resource.h should look something like
#define IDD_ABOUTBOX                    100
#define IDR_MAINFRAME                    128
#define IDR_JUN112TYPE                    129
#define IDC_VIEWCLASS_COMBOBOX          1000

// Next default values for new objects
//
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS
#define _APS_3D_CONTROLS               1
#define _APS_NEXT_RESOURCE_VALUE     130
#define _APS_NEXT_CONTROL_VALUE          1001
#define _APS_NEXT_SYMED_VALUE          101
#define _APS_NEXT_COMMAND_VALUE          32771
#endif
#endif
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Author Comment

by:chilappak
ID: 6184558
thank u . i am  a beginer in vc++
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