LImageViewer::GetBounds

#include "ltwrappr.h"

L_INT LImageViewer::GetBounds (lpRect, uFlags);

Gets the bounding rectangle for the container.

Parameters

LPRECT lpRect

A pointer to a RECT structure to be updated with the bounding rectangle of the container.

L_UINT uFlags

Reserved for future use. Pass 0.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

The coordinates of lpRect are relative to the parent window coordinates. If the container window has no parent, the coordinates will be relative to the screen coordinates.

To set the bounding rectangle for the container, call LImageViewer::SetBounds.

Required DLLs and Libraries

See Also

Functions

Topics

Example

This function determines whether the container's client area is different from its parent's.

#define RECT_HEIGHT(lpRect)      ((lpRect)->bottom - (lpRect)->top)  
#define RECT_WIDTH(lpRect)       ((lpRect)->right  - (lpRect)->left)  
 
L_INT LImageViewer_GetBoundsExample(LImageViewer& ImageViewer)  
 
{ 
   RECT  rcRect; 
   RECT  rcParentRect; 
   CWnd* pwndParent; 
   CWnd  wndContainer ; 
   L_INT nRet = 0 ; 
 
   // Get the container's bonding rectangle.  
   nRet = ImageViewer.GetBounds(&rcRect, 0);  
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = wndContainer.Attach(ImageViewer.GetWindowHandle(0)) ;  
 
   // Get the container window's parent 
 
   pwndParent = wndContainer.GetParent(); 
 
   // if the container has no parent then abort.  
 
   if (pwndParent == NULL)  
 
      return FAILURE;  
 
   pwndParent->GetClientRect(&rcParentRect);  
 
   // check if the container's client area is different from the parent's client area.  
 
   if ((RECT_WIDTH(&rcRect) != RECT_WIDTH(&rcParentRect)) || (RECT_HEIGHT(&rcRect) != RECT_HEIGHT(&rcParentRect)))  
 
   { 
      nRet = ImageViewer.SetBounds(&rcParentRect, 0);  
      if(nRet != SUCCESS) 
         return nRet; 
   } 
 
   wndContainer.Detach() ;  
 
   return SUCCESS; 
} 

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