L_UpdatePanWindow

#include "l_bitmap.h"

L_LTDIS_API L_INT L_UpdatePanWindow(hPanWindow, pBitmap, ulDisplayFlags, crPen, pszTitle, prcDst)

L_HWND hPanWindow;

handle to the Pan Window

pBITMAPHANDLE pBitmap;

pointer to the bitmap handle

L_UINT ulDisplayFlags;

display flags

L_COLORREF crPen;

color for the Pan Rect

L_TCHAR* pszTitle;

title string for the Pan Window

L_RECT* prcDst;

main window's paint dest rect

Updates the Pan Window with the specified settings.

Parameter

Description

hPanWindow

Handle to the Pan Window.

pBitmap

Pointer to the bitmap handle referencing the bitmap to be displayed in the PanWindow.

ulDisplayFlags

Flags which determine how the image is painted in the Pan Window. For values, refer to Flags for the L_SetDisplayMode Function.

crPen

COLORREF value that specifies the color of the pen to use for drawing the Pan Rect.

pszTitle

Character string containing the title bar string for the Pan Window. Pass NULL for no title bar string.

prcDst

Pointer to a rect containing the main window's paint destination rect. This is used to determine the location of the Pan Rect in the Pan Window and the current zoom factor.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

Call this function immediately after creating the Pan Window to make it visible, and to set the location of the Pan Rect. Then, anytime the main window's paint destination rect changes, or any time the main window scrolls, call this function to update the Pan Window.

Required DLLs and Libraries

LTDIS

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, Linux.

See Also

Functions:

L_CreatePanWindow, L_DestroyPanWindow, PANWNDCALLBACK

Topics:

Using Color Values in LEADTOOLS

Example

For an example, refer to L_CreatePanWindow.

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