DXUT架構剖析(12)

DXUT暫停函數

函數
描述

DXUTPause

將架構的內部計數器和（或）渲染過程設為暫停狀態

DXUTRenderingPaused

檢查當前裝置的渲染狀態是否處在暫停狀態

DXUTIsTimePaused

檢查當前裝置的計時器是否處在暫停狀態

DXUTPause

Sets the paused state of DXUT internal timer and/or rendering process.

  VOID DXUTPause(  
  BOOL    bPauseTime    ,  
  BOOL    bPauseRendering  
   )  ;

Parameters

bPauseTime

[in] If TRUE, DXUT internal timer is paused. If FALSE, the timer is resumed from a paused state. See Remarks.

bPauseRendering

[in] If TRUE, DXUT will not call the LPDXUTCALLBACKD3D10FRAMERENDER callback function; DXUT will continue to call the LPDXUTCALLBACKFRAMEMOVE callback function. If FALSE, rendering will resume from a paused state. See Remarks.

Return Values

No return value.

Remarks

The timer controls the fTime and fElapsedTime parameters passed to the LPDXUTCALLBACKFRAMEMOVE or
render callback functions.

When time is paused, fTime will remain unchanged and fElapsedTime will be 0.0f. The LPDXUTCALLBACKFRAMEMOVE and
the render callback functions will still be called. This allows a camera to still move while time is paused.

When rendering is paused, the render callback function and the Direct3D Present method will not be called, and DXUT will periodically yield time to other processes by calling Sleep.

DXUTIsRenderingPaused

Indicates whether rendering has been paused in DXUT.

  BOOL DXUTIsRenderingPaused()  ;

Parameters

None.

Return Values

TRUE if rendering has been paused in DXUT.

DXUTIsTimePaused

Indicates whether time has been paused in DXUT.

  BOOL DXUTIsTimePaused()  ;

Parameters

None.

Return Values

TRUE if time has been paused in DXUT.

DXUT使用者輸入函數

函數
描述

DXUTIsKeyDown

檢查當該函數調用時，鍵盤上指定的某個鍵是否按下。

DXUTIsMouseButtonDown

檢查當該函數調用時，指定的滑鼠鍵是否按下。

DXUTIsKeyDown

Indicates whether a specified keyboard key is up or down at the time the function is called.

  BOOL DXUTIsKeyDown(  
  BYTE    vKey  
   )  ;

Parameters

vKey

[in] Virtual key code of a keyboard key. For example VK_F1, VK_LSHIFT, VK_RCONTROL, VK_RMENU, and 41 (representing the 'A' key).

Return Values

TRUE if the specified vKey keyboard key is down; FALSE otherwise.

DXUTIsMouseButtonDown

Indicates whether a specified mouse button is up or down at the time the function is called.

  BOOL DXUTIsMouseButtonDown(  
  BYTE    vButton  
   )  ;

Parameters

vButton

[in] Virtual key code of a mouse button. Allowed values are VK_LBUTTON, VK_RBUTTON, VK_MBUTTON, VK_XBUTTON1, and VK_XBUTTON2.

Return Values

TRUE if the specified vButton mouse button is down; FALSE otherwise.