窗体动态效果的实现
窗体动态效果的实现 最近用pb做了一个触摸屏的程序，项目组要求窗口显示关闭的时候有点动态效果，于是我就写了如下的程序，供大家参考借鉴。
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// 实现关闭窗体时的动态效果
// ---------------------------------------------------------
// 函数名：gf_closequery
// 参数说明:
// window window类型,调用窗口的名字
// closetype integer类型,窗口关闭方式,value = 0~10
// ---------------------------------------------------------
// 申明局部变量
int li_x ,li_y,li_width,li_height,li_ceny,li_cenx,li_xminusy,li_wminush
Integer li_gd
// 取出当前窗口的坐标值、大小值
li_x = window.x
li_y = window.y
li_width = window.width
li_height = window.height
// 设置窗体关闭前的动画效果
// 关键是看哪个值发生了变化——x、y、h、w
CHOOSE CASE closetype
CASE 0 // closetype = 0,从下到上逐渐消失
for li_gd = li_height to 0 step -1
window.height = li_gd
window.show()
next
CASE 1 // closetype = 1,从上到下逐渐消失
for li_gd = li_y to li_height+li_y step 1
window.y = li_gd
window.height = li_height+li_y - li_gd
window.show()
next
CASE 2 // closetype = 2,从右到左逐渐消失
for li_gd = li_width to 0 step -1
window.width = li_gd
next
CASE 3 // closetype = 3,从左到右逐渐消失
for li_gd = li_x to li_x+li_width step 1
window.x = li_gd
window.width = li_x+li_width - li_gd
window.show()
next
case 4 // closetype = 4,从上下向中间挤压逐渐消失
li_ceny = li_y+li_height/2
for li_gd = li_y to li_ceny step 1
window.y = li_gd
window.height = li_height - 2*(li_gd - li_y)
next
case 5 // closetype = 5,从左右向中间挤压逐渐消失
li_cenx = li_x+li_width / 2
for li_gd = li_x to li_cenx step 1
window.x = li_gd
window.width = li_width - 2*(li_gd - li_x)
next
case 6 // closetype = 6,从左上->右下
for li_gd = li_y to li_height+li_y step 1
window.y = li_gd
window.height = li_height+li_y - li_gd
if window.x < li_x + li_width then
window.x = li_x + (li_gd - li_y)
else
window.x = li_x + li_width
end if
if window.width > 0 then
window.width = li_x+li_width - window.x
else
window.width = 0
end if
next
window.x = li_x + li_width
window.y = li_height+li_y
window.width = 0
window.height = 0
window.show()
case 7 // closetype = 7,从右下->左上
for li_gd = li_height to 0 step -1
window.height = li_gd
if window.width > 0 then
window.width = li_width - (li_height - li_gd)
else
window.width = 0
end if
next
window.x = li_x
window.y = li_y
window.width = 0
window.height = 0
window.show()
case 8 // closetype = 8,从右上->左下
for li_gd = li_y to li_height+li_y step 1
window.y = li_gd
window.height = li_height+li_y - li_gd
if window.width > 0 then
window.width = li_width - (li_gd - li_y)
else
window.width = 0
end if
next
window.x = li_x
window.y = li_height+li_y
window.width = 0
window.height = 0
window.show()
case 9 // closetype = 9,从左下->右上
for li_gd = li_x to li_x+li_width step 1
window.x = li_gd
window.width = li_width +li_x -li_gd
if window.height > 0 then
window.height = li_height -(li_gd - li_x)
else
window.height = 0
end if
next
window.x = li_x+li_width
window.y = li_y
window.width = 0
window.height = 0
window.show()
case 10 // closetype = 10,从四面到中间
li_ceny = li_y+li_height/2
li_cenx = li_x+li_width / 2
for li_gd = li_y to li_ceny step 1
window.y = li_gd
window.height = li_height - 2*(li_gd - li_y)
if window.x < li_x + li_cenx then
window.x = li_x + (li_gd - li_y)
else
window.x = li_x + li_cenx
end if
if window.width > 0 then
window.width = li_width - 2*(li_gd - li_y)
else
window.width = 0
end if
next
window.x = li_cenx
window.y = li_ceny
window.width = 0
window.height = 0
window.show()
case else
window.show()
window.width = li_width
window.height = li_height
window.x = li_x
window.y = li_y
END CHOOSE
return 0
***********************************
// 调用该函数在窗体的 closequery 事件中
gf_closequery (w_main,mod(integer(string(now(),"ss")),11))
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上面是关闭时的效果，窗体打开时的动态效果的语句跟上面的差不多，在此就不写啦，如果有需要的可以告诉我，我单独发送。谢谢。