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- /***********************************************************/
- /* */
- /* Amiga C Encyclopedia (ACE) V3.0 Amiga C Club (ACC) */
- /* ------------------------------- ------------------ */
- /* */
- /* Book: ACM Intuition Amiga C Club */
- /* Chapter: Gadgets Tulevagen 22 */
- /* File: Example1.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 program will open a normal window which is connected to the */
- /* Workbench Screen. The window will use all System Gadgets, and will */
- /* close first when the user has selected the System gadget Close */
- /* window. (Same as Example3 in chapter 2 WINDOWS, except that we have */
- /* added an IDCMP check on the Close window gadget.) */
-
- /* Extra information: */
- /* This program will quit first when the user has selected the Close */
- /* window gadget. To tell Intuition that we want the System gadget Close */
- /* window to send us a message when the user selects it, we only need to */
- /* set the CLOSEWINDOW flag in the IDCMPFlags field. */
-
-
-
- #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. */
- 200, /* Width 200 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 The window will give us a message if the */
- /* user has selected the Close window gad. */
- 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 Custom gadgets. */
- NULL, /* CheckMark Use Intuition's default CheckMark. */
- "CLOSE ME", /* Title Title of the window. */
- NULL, /* Screen Connected to the Workbench Screen. */
- NULL, /* BitMap No Custom BitMap. */
- 80, /* MinWidth We will not allow the window to become */
- 30, /* MinHeight smaller than 80 x 30, and not bigger */
- 300, /* MaxWidth than 300 x 200. */
- 200, /* MaxHeight */
- WBENCHSCREEN /* Type Connected to the Workbench Screen. */
- };
-
-
-
- main()
- {
- /* Boolean variable used for the while loop: */
- BOOL close_me;
-
- /* Declare a variable in which we will store the IDCMP flag: */
- ULONG class;
-
- /* Declare a pointer to an IntuiMessage structure: */
- struct IntuiMessage *my_message;
-
-
-
- /* 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 );
-
- /* Collect the message: */
- my_message = (struct IntuiMessage *) GetMsg( my_window->UserPort );
- /* Ahhh, these paranoid compilers... */
-
- /* Have we collected the message sucessfully? */
- if(my_message)
- {
- /* After we have collected the message we can read it, and save any */
- /* important values which we maybe want to check later: */
- class = my_message->Class;
-
- /* After we have read it we reply as fast as possible: */
- /* REMEMBER! 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: */
- if( class == CLOSEWINDOW )
- close_me=TRUE; /* The user selected the Close window gadget! */
- }
- }
-
-
-
- /* We should always close the windows we have opened before we leave: */
- CloseWindow( my_window );
-
-
-
- /* Close the Intuition Library since we have opened it: */
- CloseLibrary( IntuitionBase );
-
- /* THE END */
- }
-