In This Topic ▼

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

LTDIS
LTDLG
LTEFX
LTFIL
LTIMG
LTSCR
LTTWN
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

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 ; 
 
}