Fct_Point_2D

This function create a new point (SliceO_Point) under the cursor on the specified frame.

Syntax

int Fct_Point_2D_Insert(

unsigned short flag,

SliceO_Window *window,

SliceO_Frame *frame,

int id

) ;

Parameters

flag

Type of point to create. SliceOmatic display and manipulate "CLASS_POINT_NORMAL" points, but you can also use your own point type for your modules.

window

Window in which to create the point.

frame

Frame on which to create the point.

Unique ID for the newly created point.

Return value

This function return "0" if no point is created.

Remarks

Requirements

Header:

sliceO_include.hpp

Library:

sliceO_Structures.lib

Example

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

// Function: Ima_Click

// Param: wnd (HWND) Window that receive the click

// window (SliceO_Window *) our structure for the window

// up_down (int) state of the mouse buttons

// x, y (short) mouse pos (in "Wnd" coord)

// Return: (int) 1 if this mouse action is used

// 0 if not used

// -1 if error

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

// of the mouse buttons has changed.

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

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

{

static int ID = 1 ;

SliceO_Frame *Frame_Ovr = NULL ;

Drag_Flag = 0 ;

// --- Only valid if the point module is on ---

if ( (! Point_On) && (! Ctrl_Query()) )

return( 0 ) ;

// --- only valid if over a window ---

if ( ! window )

return( 0 ) ;

// --- we react differently according to the Window Mode ---

switch( window->Class_A_Get() ) {

case WINDOW_MODE_ONE :

case WINDOW_MODE_ALL :

// --- only valid if we are over a frame ---

Frame_Ovr = (SliceO_Frame *) Fct_Variable_Value( "$FRAME_OVR" ) ;

if ( ! Frame_Ovr )

return( 0 ) ;

// --- we only want the key press clicks ---

if ( ! (up_down & KEY_PRESS ) )

return( 0 ) ;

// --- Left mouse click: Add or drag a point ---

if ( up_down & MOUSE_KEY_LEFT ) {

// --- did we catch an existing marker? ---

if ( Fct_Point_2D_Capture( CLASS_POINT_NORMAL, window, Frame_Ovr ) ) {

Drag_Flag = 1 ;

Ctrl_Update( UPDATE_USER_1 ) ;

return( 1 ) ;

} else {

// --- place a new marker ---

if ( ! Fct_Point_2D_Insert( CLASS_POINT_NORMAL, window, Frame_Ovr, ID ) )

return( -1 ) ;

ID++ ;

Drag_Flag = 1 ;

return( 1 ) ;

}

// --- Right Mouse click: delete a point ---

if ( up_down & MOUSE_KEY_RIGHT ) {

if ( Fct_Point_2D_Delete( CLASS_POINT_NORMAL, window, Frame_Ovr ) ) {

return( 1 ) ;

}

break ;

...

}

return( 0 ) ;

}

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

// Function: Ima_Motion

// Param: wnd (HWND) Window that receive the click

// window (SliceO_Window *) our structure for the window

// up_down (int) state of the mouse buttons

// x, y (short) mouse pos (in "Wnd" coord)

// Return: (int) 1 if this mouse action is used

// 0 if not used

// -1 if error

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

// has moved.

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

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

{

SliceO_Frame *Frame_Ovr = NULL ;

// --- we are only interested if we are draging a point ---

if ( ! Drag_Flag )

return( 0 ) ;

// --- only valid if over a window ---

if ( ! window ) {

Drag_Flag = 0 ;

return( 0 ) ;

}

// --- we react differently according to the Window Mode ---

switch( window->Class_A_Get() ) {

case WINDOW_MODE_ONE :

case WINDOW_MODE_ALL :

// --- only valid if we are over a frame ---

Frame_Ovr = (SliceO_Frame *) Fct_Variable_Value( "$FRAME_OVR" ) ;

if ( ! Frame_Ovr )

return( 0 ) ;

// --- drag the marker to a new location ---

if( Fct_Point_2D_Drag( CLASS_POINT_NORMAL, window, Frame_Ovr ) ) {

Point_2D_to_3D( Point_Cur ) ;

return( 1 ) ;

}

break ;

...

}

return( 0 ) ;

}