Ima_Scroll

The "Ima_Scroll()" function is called whenever the mouse scroll wheel is activated while the cursor is over an image window.

Syntax

extern "C" __declspec(dllexport) int Ima_Scroll(

HWND wnd,

SliceO_Window *window

int count,

short x, short y

)

Parameters

wnd

A handle to the interface's window

window

A pointer to the "Window" structure of the image window receiving the action.

count

Is a signed number expressing the number (and direction) of wheel "clicks".

x, y

Horizontal (x) and vertical (y) position of the cursor within the current window. (0,0 at bottom left)

Return value

The function returns "1" if the event has been used.

Remarks

Requirements

Header:

sliceO_include.hpp

Library:

sliceO_Structures.lib

Example

Sample "Ima_Scroll" function from the "Threshold mode" module.

...

// ----------------------------------------------------------------------------

// Function: Ima_Scroll

// Parameters: count (int) number of mouse wheel cliks

// Returns: (int) 1 if action was used

// This is called each time the cursor is inside an image and the mouse

// wheel has been activated.

// ----------------------------------------------------------------------------

extern "C" __declspec(dllexport) int Ima_Scroll( HWND wnd, SliceO_Window *window, int count, short x, short y )

{

// --- send this scroll to the "Ctrl" function ---

// I set "wnd" to NULL to recognize it there.

Ctrl_Scroll( NULL, count, x, y ) ;

}

...