LBitmapWindow::GetBitmapVisibleRect

Summary

Gets the visible rectangle of the displayed bitmap.

Syntax

#include "ltwrappr.h"

L_VOID LBitmapWindow::GetBitmapVisibleRect(pRect)

Parameters

LPRECT pRect

Pointer to the rectangle to be updated with the visible part of the displayed bitmap.

Returns

None.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Example

L_INT LBitmapWindow__GetBitmapVisibleRectExample(HWND hWndParent)  
{ 
   L_INT nRet; 
   LBitmapWindow  LeadBWnd ; 
    
   nRet = LeadBWnd.Load(MAKE_IMAGE_PATH(TEXT("image1.cmp"))) ; 
   if (nRet == SUCCESS) 
   { 
      L_UINT         uToolType, uRgnType; 
      RECT           rect ; 
 
      if (LeadBWnd.CreateWnd( hWndParent, TRUE, 0, 0, 100, 100) == NULL) 
         return 0; 
 
      uToolType = LeadBWnd.GetToolType() ; 
      if (uToolType != TOOL_REGION) 
         LeadBWnd.SetToolType(TOOL_REGION) ; 
 
      uRgnType = LeadBWnd.GetRegionType() ; 
      if (uRgnType != REGION_TYPE_FREE_HAND) 
         LeadBWnd.SetRegionType(REGION_TYPE_FREE_HAND) ; 
 
      //... do some process  
      //... 
 
      if (LeadBWnd.HasRgn() == TRUE) 
         LeadBWnd.CancelRgn() ; 
 
      LeadBWnd.ZoomIn() ; 
      LeadBWnd.GetBitmapVisibleRect(&rect) ; 
 
      rect.left -= 10 ; 
      rect.top  -= 10 ; 
      rect.right -= 10; 
      rect.bottom-= 10; 
 
      nRet =LeadBWnd.Move(rect); 
      if(nRet !=SUCCESS) 
         return nRet; 
      LeadBWnd.FitToParent() ; 
       
      GRADIENTDLGPARAMS GradDlgParm;   
      if(LeadBWnd. DialogEffect()->DoModalGetGradient(hWndParent)==SUCCESS) 
      { 
         nRet =LeadBWnd.GetGradientParameters(&GradDlgParm); 
         if(nRet !=SUCCESS) 
            return nRet; 
         //… 
         nRet =LeadBWnd.SetGradientParameters(&GradDlgParm); 
         if(nRet !=SUCCESS) 
            return nRet; 
 
         if (LeadBWnd.GetGradientStyle() != EFX_GRADIENT_LINE2_C_TO_LT_AND_RB) 
            LeadBWnd.SetGradientStyle(EFX_GRADIENT_LINE2_C_TO_LT_AND_RB) ;         
      } 
 
      TRANSITIONDLGPARAMS   TransDlgParm;  
      if(LeadBWnd. DialogEffect()->DoModalGetTransition(hWndParent)==SUCCESS) 
      { 
         LeadBWnd.GetTransitionParameters(&TransDlgParm); 
         //… 
         LeadBWnd.SetTransitionParameters(&TransDlgParm); 
 
         if (LeadBWnd.GetTransition() != EFX_TRANS_SOLID) 
            LeadBWnd.SetTransition(EFX_TRANS_SOLID) ; 
 
         if (LeadBWnd.GetTransitionEffect() != EFX_TRANS_UPWARD_DIAG) 
            LeadBWnd.SetTransitionEffect(EFX_TRANS_UPWARD_DIAG) ; 
 
         if (LeadBWnd.GetMaxTransitionPasses() == 1) 
            LeadBWnd.SetMaxTransitionPasses(3) ; 
      } 
 
      EFFECTDLGPARAMS  EfxDlgParm; 
      if(LeadBWnd. DialogEffect()->DoModalGetEffect(hWndParent)==SUCCESS) 
      { 
         LeadBWnd.DialogEffect()->GetEffectParams(&EfxDlgParm,sizeof(EfxDlgParm)); 
         nRet =LeadBWnd.SetEffectParameters(&EfxDlgParm); 
         if(nRet !=SUCCESS) 
            return nRet; 
 
         if (LeadBWnd.GetMaxEffectPasses() == 1) 
            LeadBWnd.SetMaxEffectPasses(3) ; 
      } 
 
      if (LeadBWnd.GetPaintEffect() != EFX_EFFECT_WIPE_L_TO_R)       
         LeadBWnd.SetPaintEffect(EFX_EFFECT_WIPE_L_TO_R) ; 
 
      if (LeadBWnd.GetRgnFrameType() != RGNFRAME_STATIC) 
         LeadBWnd.SetRgnFrameType(RGNFRAME_STATIC) ; 
   } 
   else 
      return nRet; 
 
   return SUCCESS ; 
 
} 
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