AN3128 datasheet(76/105 Pages) STMICROELECTRONICS

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Multi-input embedded GUI library firmware

AN3128

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Doc ID 16918 Rev 5

4.6.9

GL_SetDisplayWindow HAL function

Table 48 describes the GL_SetDisplayWindow function of the hardware abstraction layer.

4.6.10

GL_DrawLine HAL function

Table 49 describes the GL_DrawLine function of the hardware abstraction layer.

Table 48.

GL_SetDisplayWindow

Name

Description

Function name

GL_SetDisplayWindow

Function prototype

void GL_SetDisplayWindow (GL_uint8_t Xpos, GL_uint16_t Ypos,

GL_uint8_t Height, GL_uint16_t Width)

Behavior description

Sets a display window

Input parameter {x}

Xpos: specifies the X bottom left position

Ypos: specifies the Y bottom left position

Height: display window height.

Width: display window width.

Output parameter {x}

None

Return value

None

Required preconditions None

Called functions

LCD_SetDisplayWindow(Xpos, Ypos, Height, Width)

Table 49.

GL_DrawLine

Name

Description

Function name

GL_DrawLine

Function prototype

void GL_DrawLine (GL_uint8_t Xpos, GL_uint16_t Ypos, GL_uint16_t

Length, GL_uint8_t Direction)

Behavior description

Displays a line

Input parameter {x}

Xpos: specifies the X position.

Ypos: specifies the Y position.

Length: line length.

Direction: line direction. This parameter can be one of the following values:

Vertical or Horizontal.

Output parameter {x}

None

Return value

None

Required preconditions None

Called functions

LCD_DrawLine (Xpos, Ypos, Length, Direction)

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