L_ILN_HSCROLL

Sent when the user scrolls the ImageList Controls contents using the horizontal scrollbar.

Parameter	Description
wParam	idCtrl = (L_INT) LOWORD(wParam) identifier of control
	wNotifyCode = HIWORD(wParam) notification code
lParam	hWndCtrl = (HWND) lParam handle of the control

Comments

Sent when the user scrolls the ImageList Controls contents using the horizontal scrollbar.

The parent window of the control receives this notification message through the WM_COMMAND message.

Example

this function processes all the messages for a window

static HWND hCtl; 
L_SIZE_T MainWndProc3(HWND hWnd, L_UINT Message, WPARAM wParam, 
LPARAM lParam) 
{ 
   WORD wNotifyCode; 
   L_INT idCtl; 
   HWND hWndCtrl; 
   switch (Message) 
   { 
      case WM_SETFOCUS: 
      if(hCtl) 
         SetFocus(hCtl); 
      break; 
      case WM_COMMAND: 
      wNotifyCode = HIWORD(wParam); // notification code 
      idCtl       = LOWORD(wParam); // item, control, or accelerator identifier 
      hWndCtrl    = (HWND) lParam;  // handle of control 
      switch(idCtl) 
      { 
         case IDC_LEADIMAGELIST: 
         switch(wNotifyCode) 
         { 
            /* other code here */ 
            case L_ILN_HSCROLL: 
            MessageBox(hWnd, TEXT("Horizontal Scroll"), TEXT("Notify"), MB_OK); 
            break; 
            case L_ILN_VSCROLL: 
            MessageBox(hWnd, TEXT("Vertical Scroll"), TEXT("Notify"), MB_OK); 
            break; 
            /* other code here */ 
         } 
         break; 
         /* other code here */ 
      } 
      break; 
      /* other code here */ 
   } 
   return DefWindowProc (hWnd, Message, wParam, lParam); 
}

Help Version 19.0.2017.10.27

Products | Support | Contact Us | Copyright Notices
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Raster Imaging C API Help

Introduction

Version History

Getting Started

LEADTOOLS Raster Imaging Features

Redistributables/Files To Be Included With Your Application

Elements:	L_ILN_SETFOCUS, L_ILN_KILLFOCUS, L_ILN_VSCROLL, L_ILN_CLICKED, L_ILN_DBLCLCK, L_ILN_ITEMSEL, L_ILN_ITEMUNSEL, L_ILN_KEYDOWN
Topics:	Using the ImageList Control
	Image List Control Command Notifications