home *** CD-ROM | disk | FTP | other *** search
- /***********************************************************/
- /* */
- /* Amiga C Encyclopedia (ACE) V3.0 Amiga C Club (ACC) */
- /* ------------------------------- ------------------ */
- /* */
- /* Book: ACM Intuition Amiga C Club */
- /* Chapter: Miscellaneous Tulevagen 22 */
- /* File: Example4.c 181 41 LIDINGO */
- /* Author: Anders Bjerin SWEDEN */
- /* Date: 92-05-01 */
- /* Version: 1.10 */
- /* */
- /* Copyright 1992, Anders Bjerin - Amiga C Club (ACC) */
- /* */
- /* Registered members may use this program freely in their */
- /* own commercial/noncommercial programs/articles. */
- /* */
- /***********************************************************/
-
- /* This example shows how to handle double mouse button events. */
-
-
-
- #include <intuition/intuition.h>
-
-
-
- struct IntuitionBase *IntuitionBase;
-
-
-
- /* Declare a pointer to a Window structure: */
- struct Window *my_window;
-
- /* Declare and initialize your NewWindow structure: */
- struct NewWindow my_new_window=
- {
- 50, /* LeftEdge x position of the window. */
- 25, /* TopEdge y positio of the window. */
- 400, /* Width 400 pixels wide. */
- 100, /* Height 100 lines high. */
- 0, /* DetailPen Text should be drawn with colour reg. 0 */
- 1, /* BlockPen Blocks should be drawn with colour reg. 1 */
- CLOSEWINDOW| /* IDCMPFlags We will recieve a message when the user: */
- /* selects the Close window gad, or when the */
- MOUSEBUTTONS, /* user presses/releases the mouse buttons. */
- SMART_REFRESH| /* Flags Intuition should refresh the window. */
- WINDOWCLOSE| /* Close Gadget. */
- WINDOWDRAG| /* Drag gadget. */
- WINDOWDEPTH| /* Depth arrange Gadgets. */
- WINDOWSIZING| /* Sizing Gadget. */
- ACTIVATE, /* The window should be Active when opened. */
- NULL, /* FirstGadget No gadgets connected to this window. */
- NULL, /* CheckMark Use Intuition's default CheckMark. */
- "DOUBLE CLICK ON THE LEFT MOUSE BUTTON", /* Title Title of the window. */
- NULL, /* Screen Connected to the Workbench Screen. */
- NULL, /* BitMap No Custom BitMap. */
- 100, /* MinWidth We will not allow the window to become */
- 50, /* MinHeight smaller than 100 x 50, and not bigger */
- 400, /* MaxWidth than 400 x 200. */
- 200, /* MaxHeight */
- WBENCHSCREEN /* Type Connected to the Workbench Screen. */
- };
-
-
-
- main()
- {
- /* Boolean variable used for the while loop: */
- BOOL close_me;
-
- /* Store some data copied from the IntuitionMessage in these variables: */
- ULONG class; /* IDCMP flag. */
- USHORT code; /* Code. */
- ULONG seconds, micros; /* Time. */
-
- /* Pointer to an IntuiMessage structure: */
- struct IntuiMessage *my_message;
-
- /* Declare and initialize the time stamps: */
- ULONG sec1 = 0;
- ULONG mic1 = 0;
- ULONG sec2 = 0;
- ULONG mic2 = 0;
-
-
-
- /* Before we can use Intuition we need to open the Intuition Library: */
- IntuitionBase = (struct IntuitionBase *)
- OpenLibrary( "intuition.library", 0 );
-
- if( IntuitionBase == NULL )
- exit(); /* Could NOT open the Intuition Library! */
-
-
-
- /* We will now try to open the window: */
- my_window = (struct Window *) OpenWindow( &my_new_window );
-
- /* Have we opened the window succesfully? */
- if(my_window == NULL)
- {
- /* Could NOT open the Window! */
-
- /* Close the Intuition Library since we have opened it: */
- CloseLibrary( IntuitionBase );
-
- exit();
- }
-
-
-
- /* We have opened the window, and everything seems to be OK. */
-
-
-
- close_me = FALSE;
-
- /* Stay in the while loop until the user has selected the Close window */
- /* gadget: */
- while( close_me == FALSE )
- {
- /* Wait until we have recieved a message: */
- Wait( 1 << my_window->UserPort->mp_SigBit );
-
- /* As long as we can collect messages successfully we stay in the */
- /* while-loop: */
- while(my_message = (struct IntuiMessage *) GetMsg(my_window->UserPort))
- {
- /* After we have successfully collected the message we can read */
- /* it, and save any important values which we maybe want to check */
- /* later: */
- class = my_message->Class;
- code = my_message->Code;
- seconds = my_message->Seconds;
- micros = my_message->Micros;
-
-
- /* After we have read it we reply as fast as possible: */
- /* REMEMBER! Do never try to read a message after you have replied! */
- /* (Some other process has maybe changed it.) */
- ReplyMsg( my_message );
-
-
- /* Check which IDCMP flag was sent: */
- switch( class )
- {
- case CLOSEWINDOW: /* The user selected the Close window gadget! */
- close_me=TRUE;
- break;
-
- case MOUSEBUTTONS: /* The user pressed/released a mouse button. */
- if( code == SELECTDOWN )
- {
- /* Left button pressed. */
-
- /* Save the old time: */
- sec2 = sec1;
- mic2 = mic1;
-
- /* Get the new time: */
- sec1 = seconds;
- mic1 = micros;
-
- /* Check if it was a double-click or not: */
- if( DoubleClick( sec2, mic2, sec1, mic1 ) )
- {
- printf("Double-Click!\n");
- /* Reset the values: */
- sec1 = 0;
- mic1 = 0;
- }
- }
- break;
- }
- }
- }
-
-
-
- /* Close the window: */
- CloseWindow( my_window );
-
-
-
- /* Close the Intuition Library: */
- CloseLibrary( IntuitionBase );
- }