Screen switching

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  • Screen switching

    Hi All

    Now I am doing a feasibility work ,where I want to switch between different screens that I have created .I don't know how to switch in between using a control.Could you please help me for this.



    Thanks & Regards
    Vichithra UV

  • Hi,

    not sure what you exactly mean with switching between two screens. Do mean two seperate LCDs or two dialogs?

    Here is a quick sample which shows how to switch between two dialogs.

    C Source Code

    1. #include "DIALOG.h"
    3. /*********************************************************************
    4. *
    5. * Defines
    6. *
    7. **********************************************************************
    8. */
    9. #define ID_WINDOW_0 (GUI_ID_USER + 0x00)
    10. #define ID_BUTTON_0 (GUI_ID_USER + 0x01)
    11. #define ID_BUTTON_1 (GUI_ID_USER + 0x02)
    13. #define ID_WINDOW_10 (GUI_ID_USER + 0x10)
    14. #define ID_TEXT_10 (GUI_ID_USER + 0x11)
    16. #define ID_WINDOW_20 (GUI_ID_USER + 0x10)
    17. #define ID_TEXT_20 (GUI_ID_USER + 0x11)
    19. /*********************************************************************
    20. *
    21. * Static data
    22. *
    23. **********************************************************************
    24. */
    25. /*********************************************************************
    26. *
    27. * _aDialogCreate
    28. */
    29. static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
    30. { WINDOW_CreateIndirect, "Window", ID_WINDOW_0, 0, 0, 320, 240, 0, 0x0, 0 },
    31. { BUTTON_CreateIndirect, "Screen 1", ID_BUTTON_0, 50, 180, 80, 20, 0, 0x0, 0 },
    32. { BUTTON_CreateIndirect, "Screen 2", ID_BUTTON_1, 190, 180, 80, 20, 0, 0x0, 0 },
    33. };
    35. /*********************************************************************
    36. *
    37. * _aScreen1Create
    38. */
    39. static const GUI_WIDGET_CREATE_INFO _aScreen1Create[] = {
    40. { WINDOW_CreateIndirect, "Screen 1", ID_WINDOW_10, 80, 15, 160, 160, 0, 0x0, 0 },
    41. { TEXT_CreateIndirect, "Screen 1", ID_TEXT_10, 30, 70, 100, 20, 0, 0x0, 0 },
    42. };
    44. /*********************************************************************
    45. *
    46. * _aScreen2Create
    47. */
    48. static const GUI_WIDGET_CREATE_INFO _aScreen2Create[] = {
    49. { WINDOW_CreateIndirect, "Screen 2", ID_WINDOW_20, 80, 15, 160, 160, 0, 0x0, 0 },
    50. { TEXT_CreateIndirect, "Screen 2", ID_TEXT_20, 30, 70, 100, 20, 0, 0x0, 0 },
    51. };
    53. /*********************************************************************
    54. *
    55. * Static code
    56. *
    57. **********************************************************************
    58. */
    59. /*********************************************************************
    60. *
    61. * _cbScreen2
    62. */
    63. static void _cbScreen2(WM_MESSAGE * pMsg) {
    64. WM_HWIN hItem;
    66. switch (pMsg->MsgId) {
    67. case WM_INIT_DIALOG:
    68. //
    69. // Initialization of 'Screen 1'
    70. //
    71. hItem = pMsg->hWin;
    72. WINDOW_SetBkColor(hItem, GUI_MAKE_COLOR(0x00FF0000));
    73. //
    74. // Initialization of 'Screen 1'
    75. //
    76. hItem = WM_GetDialogItem(pMsg->hWin, ID_TEXT_20);
    77. TEXT_SetTextAlign(hItem, GUI_TA_HCENTER | GUI_TA_VCENTER);
    78. TEXT_SetTextColor(hItem, GUI_MAKE_COLOR(0x000000FF));
    79. TEXT_SetFont(hItem, GUI_FONT_24B_1);
    80. break;
    81. default:
    82. WM_DefaultProc(pMsg);
    83. break;
    84. }
    85. }
    87. /*********************************************************************
    88. *
    89. * _cbScreen1
    90. */
    91. static void _cbScreen1(WM_MESSAGE * pMsg) {
    92. WM_HWIN hItem;
    94. switch (pMsg->MsgId) {
    95. case WM_INIT_DIALOG:
    96. //
    97. // Initialization of 'Screen 1'
    98. //
    99. hItem = pMsg->hWin;
    100. WINDOW_SetBkColor(hItem, GUI_MAKE_COLOR(0x0000FF00));
    101. //
    102. // Initialization of 'Screen 1'
    103. //
    104. hItem = WM_GetDialogItem(pMsg->hWin, ID_TEXT_10);
    105. TEXT_SetTextAlign(hItem, GUI_TA_HCENTER | GUI_TA_VCENTER);
    106. TEXT_SetTextColor(hItem, GUI_MAKE_COLOR(0x000000FF));
    107. TEXT_SetFont(hItem, GUI_FONT_24B_1);
    108. break;
    109. default:
    110. WM_DefaultProc(pMsg);
    111. break;
    112. }
    113. }
    115. /*********************************************************************
    116. *
    117. * _cbDialog
    118. */
    119. static void _cbDialog(WM_MESSAGE * pMsg) {
    120. WM_HWIN hItem;
    121. int NCode;
    122. int Id;
    123. static WM_HWIN hScreen1, hScreen2;
    125. switch (pMsg->MsgId) {
    126. case WM_INIT_DIALOG:
    127. //
    128. // Initialization of 'Window'
    129. //
    130. hItem = pMsg->hWin;
    131. WINDOW_SetBkColor(hItem, GUI_MAKE_COLOR(0x00000000));
    132. hScreen1 = GUI_CreateDialogBox(_aScreen1Create, GUI_COUNTOF(_aScreen1Create), _cbScreen1, hItem, 0, 0);
    133. hScreen2 = GUI_CreateDialogBox(_aScreen2Create, GUI_COUNTOF(_aScreen2Create), _cbScreen2, hItem, 0, 0);
    134. WM_HideWindow(hScreen1);
    135. WM_HideWindow(hScreen2);
    136. break;
    137. case WM_NOTIFY_PARENT:
    138. Id = WM_GetId(pMsg->hWinSrc);
    139. NCode = pMsg->Data.v;
    140. switch(Id) {
    141. case ID_BUTTON_0: // Notifications sent by 'Screen 1'
    142. switch(NCode) {
    143. case WM_NOTIFICATION_RELEASED:
    144. WM_HideWindow(hScreen2);
    145. WM_ShowWin(hScreen1);
    146. break;
    147. }
    148. break;
    149. case ID_BUTTON_1: // Notifications sent by 'Screen 2'
    150. switch(NCode) {
    151. case WM_NOTIFICATION_RELEASED:
    152. WM_HideWindow(hScreen1);
    153. WM_ShowWin(hScreen2);
    154. break;
    155. }
    156. break;
    157. }
    158. break;
    159. default:
    160. WM_DefaultProc(pMsg);
    161. break;
    162. }
    163. }
    165. /*********************************************************************
    166. *
    167. * Public code
    168. *
    169. **********************************************************************
    170. */
    171. /*********************************************************************
    172. *
    173. * MainTask
    174. */
    175. void MainTask(void) {
    176. WM_SetCreateFlags(WM_CF_MEMDEV);
    177. GUI_Init();
    178. GUI_CreateDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), _cbDialog, WM_HBKWIN, 0, 0);
    179. while (1) {
    180. GUI_Delay(100);
    181. }
    182. }
    Display All


    Regards,
    Sven
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